FRITZ!Box 7590 Service - Knowledge Base

FRITZ!Box 7590 Service
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FRITZ!Box does not detect a mobile broadband dongle

The FRITZ!Box does not detect a mobile broadband dongle. The dongle is not displayed in the user interface under "Home Network > USB / Storage" when you connect it to the FRITZ!Box.

Simply proceed as described below. After each measure, check whether the problem is solved.

1 Installing the latest FRITZ!OS

  1. Install the latest FRITZ!OS on the FRITZ!Box.

2 Samsung GT-B3740 is not supported

Samsung's mobile broadband dongle GT-B3740 cannot be used with the FRITZ!Box's USB port because Samsung designed this LTE dongle for use with manufacturer-specific interfaces. This is not an error on the part of the FRITZ!Box, this is due to technical reasons on the part of the Samsung dongle.

Note:Some mobile network operators offer the LTE dongle GT-B3740 under their own name. The FRITZ!Box detects the LTE dongle GT-B3740 as a USB storage device.

3 Checking whether the mobile broadband dongle is working properly

  1. For testing purposes, connect the mobile broadband dongle directly to a USB port on your computer.
  2. If the computer does not detect the mobile broadband dongle, then the mobile broadband dongle is defective. In this case, contact the manufacturer.

4 Connecting a mobile broadband dongle directly to the FRITZ!Box

The following step is only necessary if the mobile broadband dongle is connected to the FRITZ!Box via a USB hub:

  1. For testing purposes, connect the mobile broadband dongle directly to the FRITZ!Box (i.e. without a USB hub).
  2. If the mobile broadband dongle is now detected, then the USB hub is either defective or it does not support the mobile broadband dongle you connected.
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