RNX-AC1900PCE
AC1900 Wireless Dual Band PCI Express Adapter
1910020780
REV 1.0.1
COPYRIGHT & TRADEMARKS
Specifications are subject to change without notice.
is a registered trademark of
Rosewill Inc. Other brands and product names are trademarks or registered trademarks of their
respective holders.
No part of the specifications may be reproduced in any form or by any means or used to make
any derivative such as translation, transformation, or adaptation without permission from
Rosewill Inc. Copyright © 2016 Rosewill Inc. All rights reserved.
http://www.Rosewill.com
FCC STATEMENT
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by turning
the equipment off and on, the user is encouraged to try to correct the interference by one or
more of the following measures:
•
•
•
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
•
Consult the dealer or an experienced radio/ TV technician for help.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two
conditions:
1) This device may not cause harmful interference.
2) This device must accept any interference received, including interference that
may cause undesired operation.
Any changes or modifications not expressly approved by the party responsible for compliance
could void the user’s authority to operate the equipment.
Note: The manufacturer is not responsible for any radio or TV interference caused by
unauthorized modifications to this equipment. Such modifications could void the user’s authority
to operate the equipment.
FCC RF Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled
environment. End users must follow the specific operating instructions for satisfying RF
exposure compliance. This transmitter must not be co-located or operating in conjunction with
any other antenna or transmitter. This equipment has been SAR-evaluated for use in hand.
SAR measurements are based on a 5mm spacing from the body and that compliance is
achieved at that distance.
CONTENTS
Package Contents .................................................................................................... 1
Chapter 1 Product Overview ................................................................................. 2
1.1 Introduction ................................................................................................................ 2
1.2 Features..................................................................................................................... 2
1.3 LED Status................................................................................................................. 3
Chapter 2 Installation ............................................................................................. 4
2.1 Hardware Installation ................................................................................................. 4
2.2 Software Installation .................................................................................................. 4
Chapter 3 Connect to a Wireless Network ........................................................... 9
3.1 To connect using Rosewill Wireless Configuration Utility ......................................... 9
3.2 To connect using WPS ............................................................................................ 13
3.2.1
PBC (Push Button Configuration) method ................................................. 14
3.2.2
PIN method................................................................................................. 15
3.3 To connect using Windows built-in wireless utility .................................................. 16
3.3.1
In Windows XP ........................................................................................... 16
3.3.2
In Windows 7 .............................................................................................. 17
3.3.3
In Windows 8 .............................................................................................. 18
3.3.4
In Windows 8.1 ........................................................................................... 20
3.3.5
In Windows 10 ............................................................................................ 22
Chapter 4 Management ........................................................................................ 24
4.1 Profile ....................................................................................................................... 24
4.1.1
Add a profile ............................................................................................... 24
4.1.2
Modify a profile ........................................................................................... 29
4.1.3
Delete a profile ........................................................................................... 29
4.2 Advanced ................................................................................................................. 30
4.3 About ....................................................................................................................... 31
Chapter 5 SoftAP Mode (For Windows 7 and Windows 8/8.1) .......................... 32
Chapter 6 Uninstall Software............................................................................... 35
6.1 In Windows XP/7 ..................................................................................................... 35
6.1.1
Uninstall the utility software from your PC ................................................. 35
6.1.2
Uninstall the driver software from your PC ................................................ 37
6.2 In Windows 8/8.1 ..................................................................................................... 38
6.2.1
Uninstall the utility software from your PC ................................................. 39
6.2.2
Uninstall the driver software from your PC ................................................ 40
Appendix A: Specifications ................................................................................... 42
Appendix B: Glossary ............................................................................................ 44
RNX-AC1900PCE
AC1900 Wireless Dual Band PCI Express Adapter User Guide
Package Contents
Please verify that all the package contents below are available.



One RNX-AC1900PCE AC1900 Wireless Dual Band PCI Express Adapter
Quick Installation Guide
One Resource CD, including:
•
•
•
Rosewill Wireless Configuration Utility and Drivers
User Guide
Other helpful information
Make sure that the above items are contained in the package. If any of the above items is
damaged or missing, please contact your distributor.
) Note:
The ‘adapter’ mentioned in this User Guide stands for RNX-AC1900PCE AC1900 Wireless Dual
Band PCI Express Adapter without any explanation.
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AC1900 Wireless Dual Band PCI Express Adapter User Guide
Chapter 1 Product Overview
1.1
Introduction
The adapter is a dual band 802.11ac client device designed to deliver a high-speed wireless
performance for your desktop. With a faster wireless connection, you can get a better Internet
experience, such as downloading, gaming, and video streaming.
The adapter provides high speed wireless connection with other wireless clients. The incredible
speed makes it ideal for handling multiple data streams at the same time, which ensures your
network stable and smooth. The performance of this 802.11ac wireless will give you the
unexpected networking experience at speed much faster than 802.11n. It is also compatible with all
IEEE 802.11a, IEEE 802.11b, IEEE 802.11g and IEEE 802.11n products.
The adapter supports WEP, WPA-PSK/WPA2-PSK and WPA/WPA2 encryption to prevent
outside intrusion and protect your personal information from being exposed.
The adapter is easy to install and manage. The Quick Setup Wizard will guide you step-by-step
through the installation process and the Rosewill Wireless Configuration Utility will instruct you to
quickly set up a wireless connection.
With unmatched wireless performance, reception, and security protection, the RNX-AC1900PCE
is the best choice for easily adding or upgrading wireless connectivity to your desktop.
1.2
Features

Supports dual-band, 2.4GHz or 5GHz

Supports IEEE 802.11 ac

Seamlessly compatible with 802.11a/b/g/n products

Experience smoother video streaming and online gaming by choosing the clearer 5GHz band
for wireless connections

Supports 64/128 WEP, WPA/WPA2, WPA-PSK/WPA2-PSK(TKIP/AES), supports IEEE
802.1X

Supports Windows XP 32/64bit, Windows 7 32/64bit, Windows 8 32/64bit, Windows 8.1
32/64bit, Windows 10 32/64bit

Supports ad-hoc and infrastructure mode

Bundled utility provides quick & hassle-free installation
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1.3
AC1900 Wireless Dual Band PCI Express Adapter User Guide
LED Status
LED status:
Status
On
Flashing
Working Status
The adapter has been installed.
Data is being transmitted or received at a high data rate.
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AC1900 Wireless Dual Band PCI Express Adapter User Guide
Chapter 2 Installation
Please install the PCI Express adapter into your computer before installing the driver and utility
software from the Resource CD.
2.1
Hardware Installation
1.
Turn off your computer and unplug the power cord from the computer.
2.
Open the case and locate an available PCI Express slot. Remove the metal slot cover on the
back of the PC. Keep the screws. Turn to your computer manufacturer for instructions if
needed.
3.
Insert the PCI Express adapter into the PCI Express slot. Make sure that all of its pins have
touched the slot's contacts. Once the adapter has been firmly inserted, screw its fastening
tab. Then, close your PC case.
4.
Insert the power cable back into the computer and turn on your computer.
Note:
When the hardware has been successfully installed on your computer, you may be prompted
'Found New Hardware Wizard' (as shown in Figure 2-1); please click Cancel, and then follow
the Software Installation steps to install driver and utility for your adapter.
Figure 2-1 Found New Hardware Wizard in Windows XP
2.2
Software Installation
The adapter’s Setup Wizard will guide you through the installation procedures for Windows XP,
Windows 7 and Windows 8/8.1. The procedures in different systems are quite similar, therefore
here we use the procedures in Windows 7 as an example.
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1.
AC1900 Wireless Dual Band PCI Express Adapter User Guide
Insert the Resource CD into your CD-ROM drive and then browse the resource CD, double
click Setup.exe to begin (as shown in the below Figure 2-2).
Figure 2-2
2.
The InstallShield Wizard window will appear. Click Next to continue.
Figure 2-3
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3.
AC1900 Wireless Dual Band PCI Express Adapter User Guide
Choose a setup type. It is recommended to select Install Rosewill Wireless
Configuration Utility and Driver. Selecting Install Driver Only can only install driver.
Click Next to continue.
Figure 2-4
4.
Click Change to specify the destination location for the software or you can leave it default.
Click Next in the screen below to continue.
Figure 2-5
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5.
AC1900 Wireless Dual Band PCI Express Adapter User Guide
Click Install to continue the setup.
Figure 2-6
6.
The utility and drivers will install. It may take 1~2 minutes.
Figure 2-7
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RNX-AC1900PCE
7.
AC1900 Wireless Dual Band PCI Express Adapter User Guide
After all the steps above, you will see the screen below. Click Finish to complete the setup.
Figure 2-8
8.
After installation, the utility configuration page will automatically pop up as shown in the
following figure and the icon
will appear in your system tray. To connect to a network,
please refer to Chapter 3 Connect to a Wireless Network.
Figure 2-9
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AC1900 Wireless Dual Band PCI Express Adapter User Guide
Chapter 3 Connect to a Wireless Network
With both the hardware and software successfully installed into your computer, you can quickly
connect to a wireless network using one of the following methods.

Method One: To connect using Rosewill Wireless Configuration Utility
AC1900PCE uses the Rosewill Wireless Configuration Utility as the management software. The
utility provides you an easy interface to connect to a network and to change any settings related
to the wireless adapter.

Method Two: To connect using WPS
By this method, you can connect to your network quickly on the condition that your Router or
access point supports WPS or QSS as is called by some other products.

Method Three: To connect using Windows built-in wireless utility
Windows users may use the built-in wireless utility to connect to a wireless network. For specific
operations, please go to Section 3.3 To connect using Windows built-in wireless utility.
3.1
1.
To connect using Rosewill Wireless Configuration Utility
After installation, the utility configuration page will automatically pop up on the screen. If the
utility page does not pop up, you can also launch the utility by double-clicking the
on your desktop.
Figure 3-1
9
icon
RNX-AC1900PCE
2.
AC1900 Wireless Dual Band PCI Express Adapter User Guide
The Network page will display all wireless networks that are available in your area. To
connect to a network, simply highlight the wireless network name (SSID) and click
Connect. If you tick Connect automatically, the adapter will automatically connect to your
target network next time.
c
3.
Figure 3-2
You will be prompted different windows when you choose wireless network of different
security types.
1)
Wireless network of WPA/WPA2-Personal
If you selected a wireless network of the security type WPA/WPA2-Personal, you will be
prompted to enter the password in the security key field, as shown in Figure 3-3. Or you
can push the WPS/QSS button on your Router (if it features the WPS/QSS function) to
quickly build a connection without entering the security key (password).
Figure 3-3
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AC1900 Wireless Dual Band PCI Express Adapter User Guide
 Note:
The security key (password) can be found on the configuration page of your Router or Access
Point.
2)
Wireless network of WPA/WPA2-Enterprise
If you selected a wireless network of the security type WPA/WPA2-Enterprise, you will be
prompted to choose a type of authentication, either Certificate or Password. With
Certificate as your authentication, you need to select one specific certificate from the
drop-down list, as shown in Figure 3-4. With Password as your authentication, you should
enter the right user name and password in the corresponding field, as shown in Figure 3-5.
Figure 3-4
Figure 3-5
3)
Wireless network of None
If you selected a wireless network of None (that is, no security is set.), you can get directly
connected to this network without any further configuration.
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RNX-AC1900PCE
4.
AC1900 Wireless Dual Band PCI Express Adapter User Guide
Please wait a few minutes for the connection process.
Figure 3-6
5.
You have now successfully connected to your network. Click Close to enjoy the Internet.
Figure 3-7
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RNX-AC1900PCE
6.
AC1900 Wireless Dual Band PCI Express Adapter User Guide
To view more information about the network currently connected, click Status in the tools
section and the page will display information such as the network type, channel, rate, etc.
Figure 3-8
3.2
To connect using WPS
WPS (Wi-Fi Protected Setup) function allows you to add a new wireless device to an existing
network quickly.
If your wireless Router supports WPS or QSS (Quick Security Setup), you can establish a
wireless connection between wireless card and Router using either Push Button Configuration
(PBC) method or PIN method. Two WPS connection methods are listed in the following parts,
while the third method is only supported in Windows XP.
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AC1900 Wireless Dual Band PCI Express Adapter User Guide
3.2.1 PBC (Push Button Configuration) method
1.
Press the WPS or QSS button on the Router. Here we use a Router as an example. Press
the WPS/Reset button.
2.
Open Rosewill Wireless Configuration Utility and click WPS tab. Select Push the button
on my access point or wireless router and then click Connect.
Figure 3-9
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RNX-AC1900PCE
3.
AC1900 Wireless Dual Band PCI Express Adapter User Guide
The adapter will be connecting to the target network.
Figure 3-10
4.
When the following window appears, you have successfully connected to the network.
Figure 3-11
3.2.2 PIN method
1.
Open Rosewill Wireless Configuration Utility and click WPS tab. Select Enter the PIN of
my access point or wireless router. In the empty field beside PIN, enter the PIN labeled
on the bottom of the Router (here takes 13492564 for example). If you have generated a
new PIN code for your Router, please enter the new one instead. Click Connect to
continue.
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AC1900 Wireless Dual Band PCI Express Adapter User Guide
Figure 3-12
2.
The adapter will be connecting to the target network.
Figure 3-13
3.
3.3
When Figure 3-11 appears, you have successfully connected to the network.
To connect using Windows built-in wireless utility
3.3.1 In Windows XP
Windows XP users may use the built-in wireless utility. Follow the steps below.
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RNX-AC1900PCE
1.
AC1900 Wireless Dual Band PCI Express Adapter User Guide
Right-click on the utility icon in your system tray (lower-right corner). Select Switch to
Windows wireless configuration tool.
Figure 3-14
2.
Right-click on the wireless computer icon in your system tray (lower-right corner). Select
View Available Wireless Networks.
Figure 3-15
3.
The utility will display any available wireless networks in your area. Click on a network
(displayed using the SSID) and click the Connect button.
4.
If the network is security-enabled, you will be prompted to enter the key as shown below. If
not, you will connect to the network directly without entering a key.
Figure 3-16
3.3.2 In Windows 7
Windows 7 users may use the built-in wireless utility. Follow the steps below.
1.
Left-click the wireless icon
in your system tray (lower-right corner). The utility will
display any available wireless networks in your area. Highlight the wireless network
(displayed using the SSID) to be connected and then click Connect.
2.
If the network you would like to connect is encrypted, enter the same security key or
passphrase that is on your Router. Or push the WPS/QSS button on the Router or access
point (You will be prompted to push the button on the window if WPS function is supported
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RNX-AC1900PCE
AC1900 Wireless Dual Band PCI Express Adapter User Guide
as shown in the figure below). If the network to be connected is not secure, the connection
will be built without entering a key.
Figure 3-17
3.
When Connected appears behind the SSID, you have successfully connected to the target
network.
3.3.3 In Windows 8
Windows 8 users may use the built-in wireless utility. Follow the steps below.
1.
Click the icon
at the bottom of your screen, and a network list will appear at the right
side of your screen. Select your target network, and then click Connect.
Figure 3-18
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RNX-AC1900PCE
2.
AC1900 Wireless Dual Band PCI Express Adapter User Guide
If the network is unencrypted, you will directly connect to it.
If the network is encrypted, enter the password (network security key) and then click Next
to continue.
Figure 3-19
 Note:
You can also push the WPS/QSS button on your router as hinted “You can also connect by
pushing the button on the router”. Then click Next to continue.
3.
When Connected appears behind the SSID (as shown below), you have successfully
connected to the target network.
Figure 3-20
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AC1900 Wireless Dual Band PCI Express Adapter User Guide
 Note:
If the adapter is connected to the network for the first time, you will be asked whether to turn on
sharing or connect to devices. Please select “Yes, ...”or “No, ...” according to your Internet
environment.
Figure 3-21
3.3.4 In Windows 8.1
Windows 8.1 users may use the built-in wireless utility. Follow the steps below.
1.
Click the icon
at the bottom of your screen, and a network list will appear at the right
side of your screen. Select your target network, and then click Connect.
Figure 3-22
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RNX-AC1900PCE
2.
AC1900 Wireless Dual Band PCI Express Adapter User Guide
If the network is unencrypted, you will directly connect to it.
If the network is encrypted, enter the password (network security key) and then click Next
to continue.
Figure 3-23
 Note:
You can also push the WPS/QSS button on your router as hinted “You can also connect by
pushing the button on the router”. Then click Next to continue.
3.
When Connected appears behind the SSID (as shown below), you have successfully
connected to the target network.
Figure 3-24
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AC1900 Wireless Dual Band PCI Express Adapter User Guide
 Note:
If the adapter is connected to the network for the first time, you will be asked whether to connect
to devices. Please select “Yes” or “No” according to your Internet environment.
Figure 3-25
3.3.5 In Windows 10
Windows 10 users may use the built-in wireless utility. Follow the steps below.
1.
2.
Click the icon
at the bottom of your screen, and a network list will appear at the right
side of your screen. Select your target network, and then click Connect.
Figure 3-26
If the network is unencrypted, you will directly connect to it.
If the network is encrypted, enter the password (network security key) and then click Next
to continue.
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AC1900 Wireless Dual Band PCI Express Adapter User Guide
Figure 3-27
 Note:
You can also push the WPS/QSS button on your router as hinted “You can also connect by
pushing the button on the router”. Then click Next to continue.
3.
When Connected appears behind the SSID (as shown below), you have successfully
connected to the target network.
Figure 3-28
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RNX-AC1900PCE
AC1900 Wireless Dual Band PCI Express Adapter User Guide
Chapter 4 Management
This section will show you how to configure your AC1900PCE adapter using the Rosewill
Wireless Configuration Utility.
The AC1900PCE adapter uses the Rosewill Wireless Configuration Utility as the management
software. The utility provides users with an easy interface to change any settings related to the
adapter. Double-clicking on the
4.1
icon on your desktop will start the utility.
Profile
Your wireless networks may vary in different places like home, office or coffee shop. With
Profile management, you can easily save and manage various networks to be connected,
saving you the trouble of having to repeat the same configurations. Click Profile in the tools
section, the following page will appear.
Figure 4-1
4.1.1 Add a profile
To add a profile, click the Add button on the bottom of the screen. Then the configuration
window will appear.
4.1.1.1. Add a profile in Infrastructure mode
If you are connecting to a wireless router or access point, select Infrastructure as the Network
Type in the screen that appears and follow the instructions below to finish the setting.
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AC1900 Wireless Dual Band PCI Express Adapter User Guide
Figure 4-2
Figure 4-3
The following items can be found on the screen.

Profile Name: Enter a name for your profile (e.g. Home, Office, Coffee Shop). The same
name is not allowed.

SSID: Select the target network from the drop-down list.

Network Type: Select the network type. If you are connecting to a wireless Router or
access point, select Infrastructure. If you are connecting to another wireless client such as
an adapter, select ad-hoc.

Security Type: Select the security type from the list. Four options are available:
WPA-PSK/WPA2-PSK, WPA/WPA2, WEP and None. The security type should be the
same as on your Router or access point, otherwise, you will not be able to build a
successful connection. WPA-PSK/WPA2-PSK uses a passphrase or key to authenticate
your wireless connection. The key must be the exact same key entered on your wireless
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AC1900 Wireless Dual Band PCI Express Adapter User Guide
Router or access point. None stands for no security. It’s recommended to enable
WPA-PSK/WPA2-PSK on your wireless Router or access point before con is configuring
your wireless adapter.
 Note:
You will see Figure 4-2 if you selected the security type WPA-PSK/WPA2-PSK; while, if
you selected the security type WPA/WPA2, Figure 4-3 will be displayed.

Encryption Type: From the drop-down menu, select the encryption type that is the same
as on your Router or access point.

Security Key: Enter the passphrase exactly as it is on your wireless Router or access
point. Click the Show characters box to see the passphrase, or uncheck this box to hide it.

Authentication: Select a type of authentication, either certificate or password.

Certificate: If you select certificate as your Authentication, then you need to specify your
certificate from the drop-down list here.

Start this connection automatically: Check this box to automatically connect to this
network next time.

Save: Click Save to save your settings.
Having completed the above settings, the Profile page should look like the following figure. To
connect to a desired network, just highlight the network you would like to connect to and click
the Connect button on the bottom of the window. Then click OK in Figure 4-5 to activate the
profile.
Figure 4-4
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AC1900 Wireless Dual Band PCI Express Adapter User Guide
Figure 4-5
4.1.1.2. Add a profile in ad hoc mode (not available in Windows 8.1)
If you are connecting to another wireless client such as an adapter, select ad hoc as the
Network Type in the screen that appears and follow the instructions below to finish the setting.
Figure 4-6
The following items can be found on the screen.

Profile Name: Enter a name for your profile e.g. Home, Office, Coffee Shop. The same
name is not allowed.

SSID: Select the target network from the drop-down list.

Network Type: Select the network type. If you are connecting to a wireless router or
access point, select Infrastructure. If you are connecting to another wireless client such as
an adapter, select ad hoc.

Band: This item determines which operating frequency will be used. Two options are
available: 2.4Ghz and 5Ghz. It is recommended that your computers and devices running
video and voice applications use the 5Ghz band, while your guest access and computers
that are only browsing the web use the 2.4Ghz band.

2.4Ghz - You can use the 2.4GHz band to connect to many classic wireless devices
like gaming consoles, laptops, DVRs, ect.

5Ghz - This band is less crowded and is used for time-sensitive music, video
streaming or gaming. Using this band can avoid interference with 2.4GHz networks or
noisy devices like cordless phones and microwave ovens.
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 Note:
The choice for Band is only available in Windows XP; while in Windows 7 and Windows 8,
by default it only supports 2.4 G network in Ad-hoc mode.

Security Type: Select the security type from the list. Two options are available: WEP and
None. None stands for no security. It is recommended that you select WEP to secure your
wireless network.

Encryption Type: If you select None as the Security Type, the Encryption Type will be
None accordingly. If you select WEP as the Security Type, the Encryption Type will be
Open.

Key Index: You can select ASCII or Hexadecimal format on the right. ASCII format stands
for any combination of keyboard characters in the specified length. Hexadecimal format
stands for any combination of hexadecimal digits (0-9, a-f, A-F) in the specified length.
•
For 64-bit encryption - You can enter 10 hexadecimal digits (any combination of 0-9,
a-f, A-F, zero key is not permitted) or 5 ASCII characters.
•
For 128-bit encryption - You can enter 26 hexadecimal digits (any combination of 0-9,
a-f, A-F, zero key is not permitted) or 13 ASCII characters.

Security Key: Enter the passphrase. Click the Show characters box to see the
passphrase. Unchecking it will hide it.

Start this connection automatically: Check this box to automatically connect to this
network next time.

Save: Click Save to save your settings.
Having completed the above settings, the Profile page should looks like the following figure. To
connect to a desired network, just highlight the network you would like to connect to and click
the Connect button on the bottom of the window. Then click OK in Figure 4-8 to activate the
profile.
Figure 4-7
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AC1900 Wireless Dual Band PCI Express Adapter User Guide
Figure 4-8
4.1.2 Modify a profile
You may edit an existing profile by clicking the Modify button from the Profile page. For
instance, you may like to change the profile name from Home to Home1 or you may want to
specify another SSID for profile Home. After all the changes, click Save to make the changes
take effect.
Figure 4-9
4.1.3 Delete a profile
To delete an existing profile, highlight the profile name and click Remove on the bottom of the
screen or press the Delete button on your keyboard. When the following figure appears, click
OK to continue.
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AC1900 Wireless Dual Band PCI Express Adapter User Guide
Figure 4-10
4.2
Advanced
The following configurations can be made on the Advanced page:
1)
To select wireless configuration tool.
Here you can decide which tool to use, either the Rosewill Wireless Configuration Utility or
the Windows wireless configuration tool. (This option is available only in Windows XP.)
2)
3)
4)
To switch to another wireless network adapter.
Here you can switch to another adapter installed in your computer. The adapters
successfully installed in your computer will be listed in the drop-down list if the adapters are
supported by this utility.
To switch to SoftAP mode. (This option is available in Windows 7, Windows 8/8.1.)
Once enabled, the adapter will be able to work as an AP.
To change the power save mode. The default option is OFF.
Figure 4-11
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4.3
AC1900 Wireless Dual Band PCI Express Adapter User Guide
About
The About screen gives you some information about the Driver and Utility versions of the
adapter. Right-click the
icon in your system tray and select About from the list.
Figure 4-12
Figure 4-13
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Chapter 5 SoftAP Mode (For Windows 7 and
Windows 8/8.1)
In Soft AP mode, the adapter will work as an AP. This function is available in Windows 7 and
Windows 8/8.1.
Suppose that only one computer in your house can access the Internet for various reasons like
only one LAN port is available on your wired broadband Router, however, other
wireless-capable devices also want to share the Internet. Then the adapter can be configured
as an AP under the Soft AP mode, saving you the trouble of having to get a separate access
point or a Router.
With this feature, a computer can use a single physical wireless adapter to connect as a client
to a hardware access point while at the same time acting as a software AP allowing other
wireless-capable devices to connect to it.
To switch to this mode, right-click on the utility icon in your system tray and select Switch to
SoftAP mode.
Figure 5-1
Or from the Advanced page of the utility, tick ON under the SoftAP mode as shown in the
following figure. Click OK when prompted to confirm the setting.
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AC1900 Wireless Dual Band PCI Express Adapter User Guide
Figure 5-2
The Soft AP icon then will appear beside Advanced icon in the utility.
Figure 5-3 c
Figure 5-4
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RNX-AC1900PCE
AC1900 Wireless Dual Band PCI Express Adapter User Guide

SoftAP mode: Select to enable or disable the function.

Internet Connecting Share (ICS): Specify a connection through which devices connected
to your AP can access the Internet.

SSID: Enter the name for your soft AP (for example, Jone) so that others can know which
AP is yours when trying to connect to it.

Security Type: The security type here is set to be WPA2-PSK which is based on 802.11i
and uses AES (Advanced Encryption Standard) instead of TKIP. It was designed to
improve the security features of WEP. WPA2-PSK uses a passphrase or key to
authenticate your wireless connection. You needn’t make any configuration here.

Encryption Type: The encryption type here is set to be AES.

Security Key: Enter the Key in the field to make your AP security enabled. It is
recommended that you specify another key instead of the default key 12345678. Only by
entering the corresponding key can other computers establish a successful connection with
your AP.

IP Address: Here displays the IP address of the SoftAP.
Having completed the above settings, click Apply; then Figure 5-4 will pop up, where you click
OK to make Soft AP mode take effect.
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RNX-AC1900PCE
AC1900 Wireless Dual Band PCI Express Adapter User Guide
Chapter 6 Uninstall Software
6.1
In Windows XP/7
The software uninstall steps are similar in Windows XP, and Windows 7. Here we just use
Windows 7 as an example.
6.1.1 Uninstall the utility software from your PC
1.
2.
On the Windows taskbar, click the Start button, click All programsRosewill, and then
click Uninstall- Rosewill Wireless Configuration Utility.
Figure 6-1 Uninstall Utility
Click Yes to start uninstalling the utility software from your PC.
Figure 6-2
35
RNX-AC1900PCE
3.
AC1900 Wireless Dual Band PCI Express Adapter User Guide
It may take a few minutes to undergo the whole un-installation process.
Figure 6-3
4.
Click Finish when the figure below appears.
Figure 6-4
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RNX-AC1900PCE
AC1900 Wireless Dual Band PCI Express Adapter User Guide
6.1.2 Uninstall the driver software from your PC
1.
2.
On the Windows taskbar, click the Start button, click All programsRosewill, and then
click Uninstall-Rosewill RNX-AC1900PCE Driver.
Figure 6-5 Uninstall Driver
Click Yes to start uninstalling the driver software from your PC.
Figure 6-6
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RNX-AC1900PCE
3.
AC1900 Wireless Dual Band PCI Express Adapter User Guide
It may take a few minutes to undergo the whole un-installation process.
Figure 6-7
4.
Click Finish when the figure below appears.
Figure 6-8
6.2
In Windows 8/8.1
The software uninstall steps are similar in Windows 8 and Windows 8.1. Here we just use
Windows 8 as an example.
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RNX-AC1900PCE
AC1900 Wireless Dual Band PCI Express Adapter User Guide
6.2.1 Uninstall the utility software from your PC
1.
Enter the Apps interface. Find the Rosewill application, and click Uninstall- Rosewill
Wireless Configuration Utility.
Figure 6-9
2.
Click Yes to start uninstalling the utility software from your PC.
Figure 6-10
3.
It may take a few minutes to undergo the whole un-installation process.
Figure 6-11
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RNX-AC1900PCE
4.
AC1900 Wireless Dual Band PCI Express Adapter User Guide
Click Finish when the figure below appears.
Figure 6-12
6.2.2 Uninstall the driver software from your PC
1.
Enter the Apps interface. Find the Rosewill application, and click Uninstall-Rosewill
AC1900PCE Driver.
Figure 6-13
2.
Click Yes to start uninstalling the driver software from your PC.
Figure 6-14
40
RNX-AC1900PCE
3.
AC1900 Wireless Dual Band PCI Express Adapter User Guide
It may take a few minutes to undergo the whole un-installation process.
Figure 6-15
4.
Click Finish when the figure below appears.
Figure 6-16
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RNX-AC1900PCE
AC1900 Wireless Dual Band PCI Express Adapter User Guide
Appendix A: Specifications
Normal
Interface
PCI Express x1
Standards
IEEE802.11ac; IEEE802.11a; IEEE802.11b; IEEE802.11g;
IEEE802.11n; IEEE802.11e; IEEE802.1x
Operating System
Windows XP, Windows 7, Windows 8, Windows 8.1, Windows
10
Throughput
1300Mbps (Maximal)
11a: 6/9/12/18/24/36/48/54Mbps
Radio Data Rate
11b: 1/2/5.5/11Mbps
11g: 6/9/12/18/24/36/48/54Mbps
11n: 450Mbps (2.4GHz), 450Mbps (5GHz)
11ac: 600Mbps (2.4GHz), 1300Mbps (5GHz)
11a: OFDM
Modulation
11b: CCK, QPSK, BPSK;
11g: OFDM;
11n: QPSK, BPSK, 16-QAM, 64-QAM
Media Access Protocol
CSMA/CA with ACK
Data Security
WEP, WPA / WPA2, WPA-PSK / WPA2-PSK
Frequency*
2.4 ~ 2.4835 GHz, 5.180 ~ 5.240 GHz,
5.260 ~ 5.320 GHz, 5.745 ~ 5.825 GHz
Spread Spectrum
Direct Sequence Spread Spectrum (DSSS)
Safety & Emissions
FCC, CE, WIFI, IC, NCC, WHQL
Environmental and Physical
Working Temperature
0℃~40℃ (32℉~104℉)
Storage Temperature
-40℃~70℃ (-40℉~158℉)
Working Humidity
10% ~ 90% RH, Non-condensing
Storage Humidity
5% ~ 90% RH, Non-condensing
* 1. Only 2.412GHz~2.462GHz is allowed to be used in USA, which means only channel 1~11 is
available for American users to choose.
* 2. Rules on the use of 5GHz band channels may vary according to different national laws.
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Appendix B: Glossary

802.11ac - IEEE 802.11ac is a wireless computer networking standard of 802.11.This
specification will enable multi-station WLAN throughput of at least 1 gigabit per
second .This is accomplished by extending the air interface concepts embraced by
802.11n: wider RF bandwidth, more MIMO spatial streams, multi-user MIMO, and
high-density modulation (up to 256 QAM).

802.11a - specification for wireless networking at 54 Mbps using OFDM modulation and
operating in radio band at 5GHz.

802.11b - The 802.11b standard specifies a wireless product networking at 11 Mbps using
direct-sequence spread-spectrum (DSSS) technology and operating in the unlicensed radio
spectrum at 2.4GHz, and WEP encryption for security. 802.11b networks are also referred to
as Wi-Fi networks.

802.11g - specification for wireless networking at 54 Mbps using direct-sequence
spread-spectrum (DSSS) technology, using OFDM modulation and operating in the
unlicensed radio spectrum at 2.4GHz, and backward compatibility with IEEE 802.11b devices,
and WEP encryption for security.

802.11n - 802.11n builds upon previous 802.11 standards by adding MIMO (multiple-input
multiple-output). MIMO uses multiple transmitter and receiver antennas to allow for increased
data throughput via spatial multiplexing and increased range by exploiting the spatial diversity,
perhaps through coding schemes like Alamouti coding. The Enhanced Wireless Consortium
(EWC) was formed to help accelerate the IEEE 802.11n development process and promote a
technology specification for interoperability of next-generation wireless local area networking
(WLAN) products.

Ad hoc Network - An ad hoc network is a group of computers, each with a Wireless Adapter,
connected as an independent 802.11 wireless LAN. Ad hoc wireless computers operate on a
peer-to-peer basis, communicating directly with each other without the use of an access point.
Ad hoc mode is also referred to as an Independent Basic Service Set (IBSS) or as
peer-to-peer mode, and is useful at a departmental scale or SOHO operation.

DSSS - (Direct-Sequence Spread Spectrum) - DSSS generates a redundant bit pattern for all
data transmitted. This bit pattern is called a chip (or chipping code). Even if one or more bits
in the chip are damaged during transmission, statistical techniques embedded in the receiver
can recover the original data without the need of retransmission. To an unintended receiver,
DSSS appears as low power wideband noise and is rejected (ignored) by most narrowband
receivers. However, to an intended receiver (i.e. another wireless LAN endpoint), the DSSS
signal is recognized as the only valid signal, and interference is inherently rejected (ignored).

FHSS - (Frequency Hopping Spread Spectrum) - FHSS continuously changes (hops) the
carrier frequency of a conventional carrier several times per second according to a
pseudo-random set of channels. Because a fixed frequency is not used, and only the
transmitter and receiver know the hop patterns, interception of FHSS is extremely difficult.
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RNX-AC1900PCE
AC1900 Wireless Dual Band PCI Express Adapter User Guide

Infrastructure Network - An infrastructure network is a group of computers or other devices,
each with a Wireless Adapter, connected as an 802.11 wireless LAN. In infrastructure mode,
the wireless devices communicate with each other and to a wired network by first going
through an access point. An infrastructure wireless network connected to a wired network is
referred to as a Basic Service Set (BSS). A set of two or more BSS in a single network is
referred to as an Extended Service Set (ESS). Infrastructure mode is useful at a corporation
scale, or when it is necessary to connect the wired and wireless networks.

Spread Spectrum - Spread Spectrum technology is a wideband radio frequency technique
developed by the military for use in reliable, secure, mission-critical communications systems.
It is designed to trade off bandwidth efficiency for reliability, integrity, and security. In other
words, more bandwidth is consumed than in the case of narrowband transmission, but the
trade off produces a signal that is, in effect, louder and thus easier to detect, provided that the
receiver knows the parameters of the spread-spectrum signal being broadcast. If a receiver is
not tuned to the right frequency, a spread-spectrum signal looks like background noise.
There are two main alternatives, Direct Sequence Spread Spectrum (DSSS) and Frequency
Hopping Spread Spectrum (FHSS).

SSID - A Service Set Identification is a thirty-two character (maximum) alphanumeric key
identifying a wireless local area network. For the wireless devices in a network to
communicate with each other, all devices must be configured with the same SSID. This is
typically the configuration parameter for a wireless PC card. It corresponds to the ESSID in
the wireless Access Point and to the wireless network name. See also Wireless Network
Name and ESSID.

WEP - (Wired Equivalent Privacy) - A data privacy mechanism based on a 64-bit or 128-bit or
152-bit shared key algorithm, as described in the IEEE 802.11 standard. To gain access to a
WEP network, you must know the key. The key is a string of characters that you create.
When using WEP, you must determine the level of encryption. The type of encryption
determines the key length. 128-bit encryption requires a longer key than 64-bit encryption.
Keys are defined by entering in a string in HEX (hexadecimal - using characters 0-9, A-F) or
ASCII (American Standard Code for Information Interchange – alphanumeric characters)
format. ASCII format is provided so you can enter a string that is easier to remember. The
ASCII string is converted to HEX for use over the network. Four keys can be defined so that
you can change keys easily.

Wi-Fi - A trade name for the 802.11b wireless networking standard, given by the Wireless
Ethernet Compatibility Alliance (WECA, see http://www.wi-fi.net), an industry standards
group promoting interoperability among 802.11b devices.

WLAN - (Wireless Local Area Network) - A group of computers and associated devices
communicate with each other wirelessly, which network serving users are limited in a local
area.

WPA - (Wi-Fi Protected Access) - A wireless security protocol uses TKIP (Temporal Key
Integrity Protocol) encryption, which can be used in conjunction with a RADIUS server.
45
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