CBN CG7486E User guide

Compal Broadband Networks
CG7486E
Wireless Gateway Series
User Guide
1
Table of Contents
Overview
Contact Information ............................................................................................................... 4
Standard Features .................................................................................................................. 4
CG7486E LAN Choices ........................................................................................................... 5
Wireless LAN ............................................................................................................................. 5
Wired Ethernet LAN ................................................................................................................. 6
Front Panel ............................................................................................................................... 8
Rear Panel ................................................................................................................................ 9
MAC Label ............................................................................................................................. 10
Getting Started
Inside the Box ......................................................................................................................... 11
Before You Begin ................................................................................................................... 12
System Requirements ........................................................................................................... 12
Position Your Wireless Router ................................................................................................ 12
Connecting the CG7486E .................................................................................................... 14
Setting up Internet Access ................................................................................................... 15
Configuring TCP/IP in Windows XP ...................................................................................... 15
Verifying & Renewing the IP Address in Windows XP ........................................................ 16
Configuring TCP/IP in Windows 7 ........................................................................................ 16
Verifying & Renewing the IP Address in Windows 7 .......................................................... 16
Configuring TCP/IP in Windows 8 ........................................................................................ 17
Verifying & Renewing the IP Address in Windows 8 .......................................................... 17
Setting Up a Wi-Fi Network ................................................................................................... 17
Status
Starting the CG7486E Configuration Manager (CMGR) .................................................. 19
Modem ................................................................................................................................... 20
WiFi .......................................................................................................................................... 21
My Network ............................................................................................................................ 21
Wireless Pages
Basic Settings ......................................................................................................................... 23
WPS ......................................................................................................................................... 24
Access Control ...................................................................................................................... 24
WMM ...................................................................................................................................... 25
Neighbor APs ......................................................................................................................... 26
Router
Basic........................................................................................................................................ 27
2
LAN Settings ..................................................................................................................... 27
DHCP Server .................................................................................................................... 28
WAN Settings ................................................................................................................... 28
Network Map .................................................................................................................. 29
Advanced .............................................................................................................................. 29
MAC Filtering ................................................................................................................... 29
IP Filtering ......................................................................................................................... 30
Port Filtering ..................................................................................................................... 31
Port Forwarding ............................................................................................................... 31
Port Triggering ................................................................................................................. 32
URL Filtering...................................................................................................................... 33
DMZ .................................................................................................................................. 34
DDNS ................................................................................................................................ 35
Firewall ............................................................................................................................. 35
Firewall Logs .................................................................................................................... 36
Management .................................................................................................................. 36
Admin Account .............................................................................................................. 37
Remote Management ................................................................................................... 37
Event Log ......................................................................................................................... 38
Diagnostics ...................................................................................................................... 39
Cable Modem ....................................................................................................................... 40
Device Information......................................................................................................... 40
Connection ..................................................................................................................... 41
Configuration .................................................................................................................. 42
Troubleshooting
Solutions.................................................................................................................................. 43
Front-Panel LEDs and Error Conditions ................................................................................ 44
3
1
Overview
The CBN CG7486E Wireless Gateway is the worldwide most compact EuroDOCSIS
3.0 Gateway with stylish and elegant outlook, designed for your home, home
office, or small business/enterprise. It can be used in households with one or more
computers capable of wireless connectivity for remote access to the wireless
gateway.
This user guide provides product overview and setup information for the
CG7486E. It also provides instructions for installing the wireless gateway and
configuring the wireless LAN, Ethernet, router, DHCP, and security settings.
Contact Information

For any questions or assistance with the CG7486E Wireless Gateway, contact
your Internet Service provider.
Standard Features
The CG7486E Wireless Gateway combines high-speed Internet access,
networking, and computer security for a home or small-office LAN. It offers the
following features:

Combination of five separate products in one compact unit — a EURO
DOCSIS® 3.0 cable modem, IEEE 802.11b/g/n/ac wireless access point,
Ethernet 10/100/1000 Base-T connections, and firewall.

An integrated high-speed cable modem for continuous broadband access
to the Internet and other online services with much faster data transfer than
traditional dial-up or ISDN modems.

Advanced firewall for enhanced network security from undesired attacks
over the Internet. It supports stateful-inspection, intrusion detection, DMZ,
denial-of-service attack prevention, and Network Address Translation (NAT).

One broadband connection for up to 253 computers to surf the web; all
computers on the LAN communicate as if they were connected to the same
physical network.

Two 10/100/1000Base-T Ethernet uplink ports supporting half- or full-duplex
connections with auto-MDIX capability.
4

An IEEE 802.11n/ac wireless access point to enable laptop users to remain
connected while moving around the home or small office or to connect
desktop computers without installing network wiring. Depending on distance,
wireless connection speeds can vary.


CG7486E wireless function supports Wi-Fi 2.4G/5G dual-band mode.

Routing for a wireless LAN (WLAN) or a wired Ethernet LAN; you can connect
more than two computers using hubs and/or switches

A built-in DHCP server to easily configure a combined wired and/or wireless
Class C private LAN.

Virtual private network (VPN) pass-through operation supporting IPSec, PPTP,
or L2TP to securely connect remote computers over the Internet.

CG7486E Configuration Manager (CMGR) which provides a graphical user
interface (GUI) for easy configuration of necessary wireless, Ethernet, router,
DHCP, and security settings.
A secure Wireless Fidelity (Wi-Fi) broadband connection for Wi-Fi enabled
devices on your network, such as your mobile, laptops, tablet, printers, PDAs,
and desktops.
CG7486E LAN Choices
You can connect up to 253 client computers to the CG7486E using one or any
combination of the following network connections:


Wi-Fi wireless LAN (WLAN)
Ethernet local area network (LAN)
Wireless LAN
Wireless communication occurs over radio waves rather than a wire. Like a
cordless telephone, a WLAN uses radio signals instead of wires to exchange
data. A wireless network eliminates the need for expensive and intrusive wiring to
connect computers throughout the home or office. Mobile users can remain
connected to the network even when carrying their laptop to different locations
in the home or office.
Each computer or other device on a WLAN must be Wi-Fi enabled with either a
built-in or external wireless adapter.
Laptops — Use a built-in wireless notebook adapter, a wireless PCMCIA slot
adapter, or a wireless USB adapter.
Desktops — Use a wireless PCI adapter, wireless USB adapter, or compatible
product in the PCI slot or USB port, respectively.
5
Sample Wireless Network Connections (CG7486E model shown)
Your maximum wireless operation distance depends on the type of materials
through which the signal must pass and the location of your CG7486E and clients
(stations). CBN cannot guarantee wireless operation for all supported distances in
all environments.
Note: To get better wireless coverage, please put your
CG7486E wireless gateway VERTICALLY ONLY
Wired Ethernet LAN
You can easily connect any PC with an Ethernet cable to the CG7486E Ethernet
port. Because the CG7486E Ethernet port supports auto-MDIX, you can use a
straight- through or cross-over cable to connect a hub, switch, or computer. Use
category 5, or better, cabling for all Ethernet connections.
6
Sample Ethernet to Computer Connection (CG7486E model shown)
A wired Ethernet LAN with more than two computers requires one or more hubs,
switches, or routers. You can:


Connect a hub or switch to any Ethernet port on the CG7486E.
Use Ethernet hubs, switches, or routers to connect up to any combination of
253 computers and wireless clients to the CG7486E.
More detailed information on Ethernet cabling is beyond the scope of this
document.
7
Front Panel
The CG7486E front panel contains indicator lights and the Wi-Fi / WPS button
which is used to configure Wi-Fi Protected Security (WPS) on compatible clients
connected to the CG7486E network.
The CG7486E front panel LED indicators provide the following status information
for power, communications, and errors:
8
LED
Flashing
On
1
POWER
Not applicable — LED does
not flash
Green: Power is properly
connected
2
ONLINE
Scanning for Internet
connection; transmitting or
receiving data over the
Internet
Green: Connected to Internet
3
WIRELESS
2.4GHz
5GHz
Amber: WPS function is
enabled.
Green: Wi-Fi wireless interface
is active now.
Rear Panel
The CG7486E (shown above) rear panel contains the following cabling port and
connectors:
9
1
Item
Description
LAN
1 2 3 4
Use any Ethernet port to connect an Ethernet-equipped computer,
hub, bridge, or switch using an RJ-45 cable.
Activity LED - Green LED defines the activity of the Ethernet
connector.
When LED is ON, this indicates that there is no data traffic and a
connection is stabilized.
When LED is FLASHING, this indicates that there is data being
transmitted upstream or downstream.
When LED is OFF, this indicates that the unit is not powered or there
is no Ethernet connection.
2
RESET
Press and hold the RESET button for five seconds or longer to restore
CG7486E to factory default settings. After factory default, settings
are restored, the gateway will restart and may take 5 to 30 minutes
to find and lock on the appropriate communication channels.
3
USB
USB host port for print server or network storage function
4
POWER
SWITCH
Switch gear for power on/off the CG7486E.
5
COAX
Connect the CG7486E to a cable wall outlet.
6
POWER
Provide power to the CG7486E.
MAC Label
The CG7486E Media Access Control (MAC) label is located on the bottom of the
CG7486E. The label contains the MAC address which is a unique, 48-bit value
that identifies each Ethernet network device. To receive data service, you will
need to provide the MAC address marked HFC MAC ID to your Internet Service
provider.”
Note: Label may differ according to local settings or requirements.
10
2
Getting Started
Inside the Box
Before you install the CG7486E Wireless Gateway, verify that the following items
are included in the box with the CG7486E:
Item
Description
Power Adapter
Connect the CG7486E to an AC electrical
outlet
WiFi Sticker Card
For user placing the WiFi SSID/Password
information for 2.4GHz and 5GHz for future
use.
Ethernet Cable
Connect the CG7486E to PC or Notebook
You must have the latest service packs and patches installed on your computer for
your operating system.
You will need a 75-ohm coaxial cable with F-type connectors to connect the
CG7486E to the nearest cable outlet. If a TV is connected to the cable outlet,
you may need a 5 to 900 MHz RF splitter and two additional coaxial cables to use
the TV and the CG7486E.
11
Before You Begin
Take the following precautions before installing the CG7486E:

Postpone installation until there is no risk of thunderstorm or lightning activity in
the area.

To avoid potential shock, always unplug the power cord from the wall outlet
or other power source before disconnecting it from the CG7486E rear panel.

To prevent overheating the CG7486E, do not block the ventilation holes on
the sides of the unit. Do not open the unit. Refer all service to your Internet
Service provider.
Check that you have the required cables, adapters, and adapter software.
Verify that the proper drivers are installed for the Ethernet adapter on each
networked computer. For information on WLAN setup, see Setting up Your Wireless
LAN.
System Requirements
Your computer must meet the following minimum requirements:


Computer with Pentium© class or better processor
Any web browser, such as Microsoft Internet Explorer, Netscape Navigator®,
or Mozilla® Firefox®
Position Your Wireless Router
The CBN CG7486E Wireless Gateway lets you access your network from anywhere within
the operating range of your wireless network. However, the operating distance or range
of your wireless connection can vary significantly depending on the physical placement
of your Gateway. For example, the thickness and number of walls the wireless signal
passes through can limit the range. For best results, place your router under the following
conditions:

First and foremost, don't settle prematurely on a location for the wireless
access point or router. Experiment; try placing the device in several different
promising locations. While trial-and-error may not be the most scientific way
to find a good spot for your equipment, it is often the only practical way to
assure the best possible Wi-Fi performance.

Strive to install the wireless access point or router in a central location. If you
have only one wireless client, installing the base station near this client is best.
For WLANs with multiple wireless clients, find a good compromise position.
Clients too far away from the base station will manage only 10% - 50%
the bandwidth of clients nearby to it. You might need to sacrifice the network
performance of one client for the good of the others.
12

Next, avoid physical obstructions whenever possible. Any barriers along the
"line of sight" between client and base station will degrade a Wi-Fi radio
signal. Plaster or brick walls tend to have the most negative impact, but really
any obstruction including cabinets or furniture will weaken the signal to some
degree. Obstructions tend to reside closer to floor level; therefore, some folks
prefer to install their wireless access point / router on or near the ceiling.

Avoid reflective surfaces whenever possible. Some Wi-Fi signals literally
bounce off of windows, mirrors, metal file cabinets and stainless steel
countertops, lessening both network range and performance.

Install the wireless access point or router at least 1 m (3 feet) away from other
home appliances that send wireless signals in the same frequency range.
Such appliances include some microwave ovens, cordless telephones, baby
monitors, and home automation equipment like X-10 devices. Any appliance
that transmits in the same general range as802.11b or 802.11g (2.4 GHz) can
generate interference.

Likewise, install the unit away from electrical equipment that also generates
interference. Avoid electric fans, other motors, and fluorescent lighting.

Note: To get better wireless coverage, please put your
CG7486E wireless gateway VERTICALLY ONLY
13
Connecting the CG7486E
Before starting, be sure the computer is turned on and the CG7486E power cord
is unplugged.
1. Connect one end of the coaxial cable to the cable outlet or splitter.
2. Connect the other end of the coaxial cable to the Cable connector on the
CG7486E. Hand-tighten the connectors to avoid damaging them.
3. Plug the power cord into the Power port on the CG7486E.
4. Plug the other end of the power cord into an electrical wall outlet.
This automatically powers on the gateway. You do not need to unplug the
gateway when it is not in use. The first time you plug in the CG7486E, allow it 5
to 30 minutes to find and lock on the appropriate communications channels.
5. Connect the Ethernet cable to the Ethernet port on the computer, and
connect the other end of the Ethernet cable to the Ethernet port on the
gateway.
6. Check that the LEDs on the front panel cycle through the following
sequence:
14
CG7486E LED Activity during Startup
LED
Description
POWER
Turns on when AC power is connected to the CG7486E.
Indicates that the power is connected properly.
ONLINE
Flashes during CG7486E registration and configuration.
Changes to solid green when the CG7486E is registered
successfully and ready for Internet access
Setting up Internet Access
After installing the CG7486E, check that you can connect to the Internet. You
can retrieve an IP address for your computer’s network interface using one of the
following options:


Retrieve the statically defined IP address and DNS address
Automatically retrieve the IP address using the Network DHCP server
The CBN CG7486E Wireless Gateway provides a DHCP server on its LAN. It is
recommended that you configure your LAN to obtain the IPs for the LAN and
DNS server automatically.
Make sure all computers on your LAN are configured for TCP/IP. After configuring
TCP/IP on your computer, you should verify the IP address.
Note: For UNIX or Linux systems follow the instructions in the
applicable user documentation.
Configuring TCP/IP in Windows XP
1. Open the Control Panel.
2. Double-click Network Connections to list the Dial-up and LAN or High-Speed
Internet connections.
3. Right-click the network connection for your network interface.
4. Select Properties from the drop-down menu to display the Local Area
Connection Properties window. Be sure Internet Protocol (TCP/IP) is
checked.
5. Select Internet Protocol (TCP/IP) and click Properties to display the Internet
Protocol (TCP/IP) Properties window.
6. Select Obtain an IP address automatically and Obtain DNS server address
automatically.
15
7. Click OK to save the TCP/IP settings and exit the TCP/IP Properties window.
8. Close the Local Area Connection Properties window and then exit the
Control Panel.
9. When you complete the TCP/IP configuration, continue with Verifying the IP
Address in Windows XP
Verifying & Renewing the IP Address in Windows XP
1. Click Start > Run. In the Run window, enter “cmd” then click OK.
2.
On the command prompt, enter “ipconfig/release” then press [Enter].
3. Once the IP address becomes 0.0.0.0, enter “ipconfig/renew” then press
[Enter]. to obtain a new IP address.
4. When finished, click the X in the upper right corner to close the black screen
Configuring TCP/IP in Windows 7
1. Open the Control Panel.
2. Click Network and Internet to display the Network and Internet window.
3. Click Network and Sharing Center to display the Network and Sharing Center
window.
4. Click change adapter settings
5. Right-click the network connection for the network interface you want to
change.
6. Click Properties to display the Local Area Connection Properties window
7. Select Internet Protocol Version 4(TCP/IPv4), double click it or click Properties
8. Select Obtain an IP address automatically and Obtain DNS server address
automatically.
9. Click OK to save the TCP/IP settings and close the Internet Protocol Version 4
(TCP/IPv4) Properties window.
10. Click OK to close the Local Area Connection Properties window.
11. Close the remaining windows and exit the Control Panel.
12. When you complete the TCP/IP configuration, continue with Verifying the IP
Address in Windows 7
Verifying & Renewing the IP Address in Windows 7
1. Click the Pearl
button then enter “cmd” on the Search bar.
2. On the command prompt, enter “ipconfig/release” then press [Enter] then
enter “ipconfig/renew” and press [Enter] again to obtain a new IP address.
3. When finished, click the X in the upper right corner to close the black screen
16
Configuring TCP/IP in Windows 8
1. Press WinKey+I and in shown strip Settings
2. Open the Control Panel.
3. Click Network and Internet to display the Network and Internet window.
4. Click Network and Sharing Center to display the Network and Sharing Center
window.
5. Click change adapter settings
6. Right-click the network connection for the network interface you want to
change.
7. Click Properties to display the Local Area Connection Properties window
8. Select Internet Protocol Version 4(TCP/IPv4), double click it or click Properties
9. Select Obtain an IP address automatically and Obtain DNS server address
automatically.
10. Click OK to save the TCP/IP settings and close the Internet Protocol Version 4
(TCP/IPv4) Properties window.
11. Click OK to close the Local Area Connection Properties window.
12. Close the remaining windows and exit the Control Panel.
13. When you complete the TCP/IP configuration, continue with Verifying the IP
Address in windows 8
Verifying & Renewing the IP Address in Windows 8
1. Press the Windows
key on your keyboard and then enter “command
prompt” to display the Command Prompt shortcut. A search box on right side of
the screen will appear.
2. Click Command Prompt
3. In the Command Prompt, enter “ipconfig /release” then press [Enter] to
release your computer’s current IP address.
Enter “ipconfig /renew” then press [Enter] to obtain a new IP address.
When finished, click the X in the upper right corner to close the black screen.
Setting Up a Wi-Fi Network
Do the following to set up a Wi-Fi network using the WPS button on the CG7486E :
1. Power on the CG7486E.
2. Power on the WPS-enabled devices you want to have access to the
network, such as a PC, router, or telephone.
The Wi-Fi network will automatically detect the WPS devices.
3. Press WPS button on the CG7486E.
17
4. If applicable, press WPS button on the other WPS devices.
18
3
Status
For normal operation, you do not need to change most default settings. Carefully
consider the following caution statements:
Starting the CG7486E Configuration Manager (CMGR)
The CG7486E Configuration Manager (CMGR) allows you to change and view
the settings on your CG7486E.
In order to login CMGR, you should key in the correct Username and Password.
By default, they should be admin and admin.
19
After login management system, the home page shows the current status of
CG7486E.
Note: may differ according to local settings or requirements.
Modem
This item displays the status of cable modem, the red block means off-line state
and the green means on-line. Users can press it to connect to the next page for
more details of the cable modem's HFC and IP network connectivity.
20
WiFi
This item shows current WiFi status and you can press it to connect to the next
page for more details.
Note: may differ according to local settings or requirements.
My Network
This item shows how many CPEs connect to CG7486E.
21
4
Wireless Pages
The CG7486E Wireless Pages allow you to configure your wireless LAN (WLAN).
You can click WIFI submenu option to view or change the configuration
information for that option.
Note: may differ according to local settings or requirements.
22
Basic Settings
CG7486E is a dual band product and all the basic settings of 2.4GHz and 5GHz
can be changed in this page. You can configure basic features of your Wi-Fi
wireless network, including to enable or to disable the wireless interface, to hide
the network from active scans, to set the wireless network name (also known as
SSID), to change security key for wireless connection and to select the working
channel.
Note: may differ according to local settings or requirements.
23
WPS
CG7486E provide WPS (Wi-Fi Protected Setup) function, with it enable will support
WPS clients to join the network very easily. It is a standard for easy and secure
establishment of a wireless network. With WPS you can setup and protect your
wireless network in just a few easy steps.
We suggest users to press Add Client button to start WPS directly. By default, that
will be PBC (Push Button Configuration) and easy for users.
Access Control
This page allows users to specify those wireless clients that are allowed to
connect to this device. This offers additional protection against unwanted
connections. You can choose Allow or Deny rule at first, and then fill in the client
MAC to enable access control function.
24
WMM
CG7486E provides WMM page to configure Wi-Fi Multimedia QoS. Actually, we
suggest users to use default settings.
25
Neighbor APs
CG7486E supports Neighbor APs function and this page shows the details of all
the nearby APs.
26
5
Router
The CABLE MODEM pages provide the information of cable connection status,
channel signals and channel configuration during the establishment of cable
connection to cable service provider’s CMTS.
Basic
LAN Settings
CG7486E allows users to configure private LAN IP for their home gateway.
27
DHCP Server
CG7486E provides DHCP server to manage IP addresses to CPEs and supports
Reserved IP Address for users’ private and static clients.
WAN Settings
This page displays WAN status after CG7486E gets online and provides users to
change Operation Mode.
28
Network Map
This page shows how many CPEs connect to CG7486E.
Users can browse here directly through the item at home index.
Advanced
MAC Filtering
This page allows configuration of MAC address filters in order to block Internet
traffic to specific network devices on your local network.
29
IP Filtering
This page allows you to specify the IP packet filtering rules to prevent the service
accessed from the Internet hosts or limit the Internet access for local hosts.
30
Port Filtering
This page allows you to specify the IP packet filtering rules to prevent the service
accessed from the Internet hosts or limit the Internet access for local hosts.
Port Forwarding
This allows for incoming requests on specific port numbers to reach web servers, FTP
servers, mail servers, etc. so they can be accessible from the public Internet.
1.
Press Create IPv4 Rule button to add new rules.
31
2.
Fill in needed information, and then press Apply button.
3.
One rule is created. And also, you can Modify or Delete the existed rules.
Port Triggering
Port triggering function is a conditional port forwarding feature. When this device
detects outbound traffic on a specific port (triggered ports), it will set up the port
forwarding rules temporarily on the port ranges you specify to allow inbound traffic.
This is supposed to increase the support for Internet gaming, video conferencing,
and Internet telephony due to these applications require multiple connections.
1.
Press Create Rule button to add Port Triggers.
32
2.
Fill in needed information and Apply.
3.
One new Port Trigger is generated. And also, you can Modify or Delete the
existed Port Trigger.
URL Filtering
This page is used to configure filtering of outbound connections and display
configured filtering rule of firewall.
1.
Press Create Rule button to add one filtering rule.
33
2.
Configure outbound information and then press Apply button.
3.
One rule is created. And also, you can Modify or Delete the existed rules.
DMZ
This page is for DMZ (Demilitarized Zone) configuration. You can fill in the exposed
host and press Apply button.
34
DDNS
This page is for DDNS (Dynamic DNS) configuration. You can fill in the registered
DDNS information here, and then press Apply button to enable your DDNS
function.
Firewall
This page is used to configure Firewall Protection level and display all allowed
services.
35
Firewall Logs
This page allows optional configuration of events to be sent to a local SysLog server.
Management
The CG7486E support management for web browser login password including
change password, CM even log, diagnostic tests and backup device current
settings.
36
Admin Account
CG7486E allows changing admin password for web browser login. Configure
Password and retype the Password again and then click Apply and when you
login in next time, you must use this new password. For secure, we strongly
suggest to change default password as soon as possible.
Remote Management
37
Event Log
CG7486E allows users to review critical system events in chronological order in the
SNMP event log. Also, users can press Clear Log button to clean all records.
38
Diagnostics
CG7486E allows users to ping diagnostics (LAN) and trace route (WAN) to help
with IP connectivity problems. And the FTP speed test tool can help to measure
the bandwidth of your downstream Internet connection. You can fill in the IP to
the Target and Start Test.

Trace route Test (WAN)

FTP Speed Test
39
Ping Diagnostics Test (LAN)
Cable Modem
Device Information
CG7486E allows a page to show current status of this home gateway.
Note: may differ according to local settings or requirements.
40
Connection
This page shows information on the status of the cable modem's HFC and IP
network connectivity.
41
Configuration
This page provides information about the manually configurable settings of the
Cable Modem.
42
6
Troubleshooting
If the solutions listed here do not solve your problem, contact your service
provider.
Before calling your service provider, try pressing the Reset button on the rear
panel of the CG7486E. Please note, if you press the Reset button, you will lose all
your custom configuration settings, including Firewall and Advanced settings.
Your service provider may ask for the front panel LED status; see Front-Panel LEDs
and Error Conditions.
Solutions
Table 1 – Troubleshooting Solutions
Problem
Possible Solution
Power light is off
Check that the CG7486E is properly plugged into the electrical
outlet.
Check that the electrical outlet is working.
Cannot send or
receive data
On the front panel, note the status of the LEDs and refer to FrontPanel LEDs and Error Conditions to identify the error. If you have
cable TV, check that the TV is working and the picture is clear. If
you cannot receive regular TV channels, the data service will not
function.
Check the coaxial cable at the CG7486E and wall outlet. Handtighten, if necessary.
Check the IP address.
Check that the Ethernet cable is properly connected to the
CG7486E and the computer.
If a device is connected via the Ethernet port, verify connectivity
by checking the LINK LEDs on the rear panel.
43
Problem
Possible Solution
Wireless client(s)
cannot send or
receive data
Perform the first four checks in “Cannot send or receive data.”
Check the Security Mode setting on the Wireless Security Page:
 If you enabled WPA and configured a passphrase on the
CG7486E, be sure each affected wireless client has the
identical passphrase. If this does not solve the problem, check
whether the wireless client supports WPA.
 If you enabled WEP and configured a key on the CG7486E, be
sure each affected wireless client has the identical WEP key. If
this does not solve the problem, check whether the client’s
wireless adapter supports the type of WEP key configured on
the CG7486E.
 To temporarily eliminate the Security Mode as a potential issue,
disable security.
After resolving your problem, be sure to re-enable wireless
security.
 On the Wireless Access Control Page, be sure the MAC address
for each affected wireless client is correctly listed.
Slow wireless
transmission speed
with WPA enabled
On the Wireless Primary Network Page, check whether the WPA
Encryption type is TKIP. If all of your wireless clients support AES,
change the WPA Encryption to AES.
Front-Panel LEDs and Error Conditions
The CG7486E front panel LEDs provides status information for the following error
conditions:
Table 2 – Front-Panel LEDs and Error Conditions
LED
Status
if, During Startup:
if, During Normal Operation:
POWER
OFF
CG7486E is not properly
plugged into the power outlet
The CG7486E is unplugged
ONLINE
FLASHING
IP registration is unsuccessful
The IP registration is lost
cbn and the cbn logo are trademarks or registered trademarks of Compal Broadband Networks, Inc.
All other product or service names are the property of their respective owners.
© 2014 Compal Broadband Networks, Inc. All rights reserved.
44