FRITZ!Box 6820 LTE Serwis - Baza wiedzy

FRITZ!Box 6820 LTE Serwis
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Mobile connection drops frequently

The mobile connection between your FRITZ!Box and your mobile network operator drops frequently (several times a day). When this occurs, the "Power" LED on the FRITZ!Box flashes and stays lit as soon as the Internet connection has been re-established. The following error message is displayed in the event log of the FRITZ!Box:

  • "LTE no longer responding"

Cause

  • The stability of the mobile connection depends on factors such as the distance from the mobile station and the shielding effect of the walls of your own house. It can also be affected if your mobile network operator is experiencing technical difficulties.

1 Checking the event log of the FRITZ!Box

  1. Click "System" in the FRITZ!Box user interface.
  2. Click "Event Log" in the "System" menu.
  3. Check whether there are events listed that occurred before and while the error occurred, or whether there are only events that occurred after the error occurred.
    • If events that occurred before and while the error occurred are also displayed:
      • Proceed with the following section.
    • If only events that occurred after the error are displayed:

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

Installing the latest FRITZ!OS makes your FRITZ!Box compatible with the latest LTE technology used by LTE providers in their radio cells:

3 Configuring the FRITZ!Box

Selecting the type of mobile communication

Depending on your mobile network operator and your contract, if there are several radio cells at your location, you may need to manually select the desired type of mobile communication in the FRITZ!Box:

  1. Click "Internet" in the FRITZ!Box user interface.
  2. Click "Account Information" in the "Internet" menu.
  3. Select "LTE only" from the drop-down list "Type of mobile communication" and click "Apply".
  4. If you are now no longer able to connect to the mobile network:
    • Test the setting "UMTS only" and then "GSM only"; use the type of mobile communication with which the FRITZ!Box achieves the highest throughput.

Selecting the LTE frequency band

If several LTE frequency bands are available at your location, you may be able to increase the stability of the mobile connection by selecting a particular frequency band:

Note:In Germany, the frequency bands 2.6 GHz, 1.8 GHz, and 800 MHz are used. Not all frequency bands are available at all locations, and not all LTE providers support all frequency bands.

  1. Click "Internet" in the FRITZ!Box user interface.
  2. Click "Account Information" in the "Internet" menu.
  3. Select "Only 2.6 GHz / band 7" from the drop-down list "LTE frequency band" and click "Apply".
  4. If the FRITZ!Box can establish a mobile connection using the frequency band you selected:
    1. Click "Internet" and then "LTE Information".
    2. Click on the "Mobile Communications" tab.
    3. Check which speed is displayed in the "Throughput" line.
  5. Repeat steps 2 - 4 with the frequency bands "Only 1.8 GHz / band 3" and "Only 800 MHz / band 20", and use the frequency band with which the FRITZ!Box can achieve the highest throughput.

4 Finding the ideal location for the FRITZ!Box

You can use the alignment aid to find the ideal location for the FRITZ!Box and the best position for the mobile broadband antennas:

  1. Click "Internet" in the FRITZ!Box user interface.
  2. Click "LTE Information" in the "Internet" menu.
  3. Click on the "Reception" tab.
  4. Click the "Start Alignment Aid" button.
    • Now the FRITZ!Box shows the signal strength for both antennas.

      Note:When the alignment aid is active, the current signal strength is also displayed in a five-level display on the FRITZ!Box LEDs. This means that you can also find the best location for the FRITZ!Box without using the FRITZ!Box user interface.

  5. Select a location for the FRITZ!Box where the value shown is as high as possible. When doing so, note the following:
    • Do not set up the FRITZ!Box in the corner of a room.
    • Position the FRITZ!Box as close to an outside wall as possible.

      Important:If you know where your provider's radio cell is located, position the FRITZ!Box by the wall facing the radio cell.

    • Position the FRITZ!Box so that it is as unobstructed as possible, i.e. not directly in back of or under an obstacle (for example pieces of furniture, heater).