DSL-2750U Wireless ADSL2+ Router with 3G/LTE/Ethernet WAN Support and USB Port
User Manual
Configuring via Web-based Interface
Basic Settings
On the USB Modem / Basic Settings page, you can view data on the USB modem connected to the router and enable/disable the function for automatic creation of 3G/LTE WAN connection upon plugging a USB modem into the router.
Figure 120. The USB Modem / Basic Settings page.
If the Automatic creation of connection switch is moved to the right and the PIN code check for the SIM card inserted into your USB modem is disabled, then an active WAN connection with default settings (for LTE modems) or the operator's settings (for GSM modems) will be automatically created when plugging the USB modem into the router. The connection will be displayed on the Connections Setup / WAN page.
If you don't want to use this function, move the Automatic creation of connection switch to the right and click the APPLY button.
When a USB modem is connected to the router, the following data are displayed in the
Information section:
Parameter Description
Vendor
Model
The manufacturer of your USB modem.
The alphanumeric code of the model of your USB modem.
Revision
IMSI
IMEI
The revision of the firmware of your USB modem.
The code stored in the SIM card inserted to your USB modem.
The code stored in the memory of the USB modem.
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DSL-2750U Wireless ADSL2+ Router with 3G/LTE/Ethernet WAN Support and USB Port
User Manual
Configuring via Web-based Interface
Parameter
Signal level
Operator name
Description
The signal level at the input of the modem's receiver. The zero signal level shows that you are out of the coverage area of the selected operator's network.
When the needed network is available, the name of the operator is displayed in this field.
A type of the network to which the USB modem is connected.
Mode
PIN
On the USB Modem / PIN page, you can change the PIN code of the SIM card inserted into your
USB modem, disable or enable the check of the PIN code.
!
The operations presented on this page are unavailable for some models of USB modems.
The current state of the SIM card inserted into your USB modem is displayed in the Status field. If the PIN code is entered incorrectly or the PIN code is not entered when the PIN code check is enabled, the Device is locked value is displayed in the Status field. If the PIN code is entered correctly or the PIN check is disabled, the Device is unlocked value is displayed in the Status field.
If the PIN code check for the SIM card inserted into your USB modem is not disabled, the Yes value is displayed in the PIN code request field. If the PIN check is disabled, the No value is displayed in the PIN code request field.
Figure 121. The USB Modem / PIN page.
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DSL-2750U Wireless ADSL2+ Router with 3G/LTE/Ethernet WAN Support and USB Port
User Manual
Configuring via Web-based Interface
To disable the PIN code check, in the PIN Code Request section, enter the current PIN code in the PIN code field and click the DISABLE button (the button is displayed if the PIN code check is enabled).
To enable the PIN code check, in the PIN Code Request section, enter the PIN code used before disabling the check in the PIN code field and click the ENABLE button (the button is displayed if the PIN code check is disabled).
To change the PIN code, in the Changing PIN Code section, enter the current code in the PIN code field, then enter a new code in the New PIN code and New PIN code confirmation fields and click the SAVE button.
If upon one of the operations described above you have entered an incorrect value in the PIN code field three times (the number of remaining attempts is displayed on the page), the SIM card inserted into your USB modem is blocked.
Figure 122. The USB Modem / PIN page. The PUK code request.
For further use of the card, in the Authorization section, enter the PUK code in the relevant field, and then specify a new PIN code for your SIM card in the New PIN code and New PIN code confirmation field. Click the APPLY button.
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