User Manual
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2.3. USB 3G/4G Modem
You can connect to the Internet using a USB 3G/4G modem. Insert your SIM card into
the USB modem Plug the USB modem into the USB port of the router. Once it has been
detected, the 3G/4G modem section will be activated and you will be able to set up your
USB modem.
Be aware that some modems work in host-less mode, which will be configured through
Tethering but not 3G/4G modem.
Click Auto Setup to create the connection.
You can also click Manual Setup to set up manually.
In General, you can set up by the three basic parameters below. Click Apply to connect.
• Device: Choose /dev/cdc-wdm0 if your modem supports QMI, otherwise you need
to choose /dev/ttyUSB, which may include several ttyUSB from 0 to 3. You need to
choose the correct one based on the modem spec. We suggest you try ttyUSB0 first.
• Service Type: Indicate the service type of your SIM card.
• APN: Confirm with your SIM card carrier.










