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Knowledge document #3598

DECT connection drops frequently

The DECT connection between a FRITZ!Fon and the FRITZ!Box is frequently lost. The message "Search for base" is shown on the telephone's display.

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

1 Installing the latest software for your telephone

  1. Install the latest software on the telephone.

2 Recharging the telephone battery

  1. Fully charge the telephone battery. Leave the telephone in the charging station for at least 12 hours.

3 Configuring the FRITZ!Box

Disabling "Reduce DECT field strength"

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

Disabling "DECT Eco"

  1. Click "Telephony" in the FRITZ!Box user interface.
  2. Click "DECT" in the "Telephony" menu.
  3. Disable the option "DECT Eco" in the section "Radio Field Strength".
  4. Click "Apply" to save the settings.

4 Turning off other base stations

  1. For testing purposes, switch off other base stations in the vicinity of the FRITZ!Box.
  2. 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

If you are using a FRITZ!Box with USB 3.0 support and a USB 3.0 device is connected to the FRITZ!Box, the USB device may be interfering with the DECT connection:

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