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Knowledge document #3538

FRITZ!Box 6591 Cable

This support document is available for the following products:

FRITZ!DECT smart plug often loses its connection to the FRITZ!Box

The DECT connection between a smart plug, for example FRITZ!DECT 200, and the FRITZ!Box drops frequently. After the connection is lost, the DECT LED starts to flash and the connection status "Not connected" is displayed in the "Smart Home" menu of the FRITZ!Box user interface.

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

1 Installing the latest FRITZ!OS for the FRITZ!Box

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

2 Installing the latest firmware for the FRITZ!DECT smart plug

Click "Home Network" in the FRITZ!Box user interface.
Click "Mesh" in the "Home Network" menu.
Click "Perform update" next to the respective device.

3 Disabling "Reduce DECT field strength"

Click "Telephony" in the FRITZ!Box user interface.
Click "DECT" in the "Telephony" menu.
Disable the option "Reduce DECT field strength" in the section "Radio Field Strength".
Click "Apply" to save the settings.

4 Turning off other base stations

For testing purposes, switch off other base stations in the vicinity of the FRITZ!Box.
If the problem no longer occurs then, switch off the other base station or place the base station farther away from the FRITZ!Box.

5 Removing USB 3.0 devices from the FRITZ!Box

For testing purposes, remove all of the USB 3.0 devices from the FRITZ!Box's USB ports.
If the problem no longer occurs then, a USB device was interfering with the radio connection. Eliminate the interference caused by the USB device.

Now the FRITZ!Box is ideally configured and you will achieve the best possible DECT range between your DECT devices and the FRITZ!Box.

Note:To establish DECT connections over even greater distances or in unfavorable environments, you can increase the DECT range of the FRITZ!Box with the FRITZ!DECT Repeater 100.