DSL-2750U Quick Installation Guide
In order to connect your device to the network of a 3G or LTE operator, on the
Device mode page, from the Connection method list, select the 3G/LTE
modem value. In this mode you can configure a 3G/LTE WAN connection,
set your own settings for the wireless network, and set your own password for
access to the web-based interface of the device.
When the operation mode is selected, click the NEXT button.
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