FRITZ!Box 6840 LTE Service - Baza wiedzy

FRITZ!Box 6840 LTE Service
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"Power" LED flashes

Your FRITZ!Box establishes a connection to your LTE provider as soon as you insert your SIM card and enter the PIN in the FRITZ!Box user interface. This can take up to 2 minutes. During this time, the "Power" LED on the FRITZ!Box flashes and then stays lit as soon as the connection has been established.

This guide shows you how to resolve the following issue:

  • The FRITZ!Box's "Power" LED flashes continuously and you cannot connect to the Internet.

One or several of the following error messages is/are displayed in the event log of the FRITZ!Box:

  • "No LTE network was found within range."
  • "Could not establish LTE connection. Reason: EPS_SERVICES_NOT_ALLOWED_IN_THIS_PLMN"

Important:Some of the settings described here are only displayed if the advanced view is enabled in the user interface. The configuration procedure and notes on functions given in this guide refer to the latest FRITZ!OS

Simply proceed as described below. After each measure, check whether the issue persists.

1 Checking which LEDs flash

2 Checking whether the LTE network is supported

The FRITZ!Box supports LTE networks in the 800 MHz, 1.8 GHz and 2.6 GHz frequency bands. The FRITZ!Box does not support other frequency bands.

Note:Your LTE provider can provide you with information on the frequency band used in your local area.

3 Checking your SIM card

Although it may not appear to be the case, your SIM card may have been inserted incorrectly, it may be damaged, or it may be the incorrect SIM card. Therefore, check the SIM card in the FRITZ!Box:

  1. Pull the card holder completely out of the SIM card slot (see fig.).
  2. Check the SIM card.
    • If the contacts on the SIM card are damaged or it is not the SIM card you received from your LTE provider:

      Important:You cannot use SIM cards intended for mobile connections according to the mobile standard UMTS/HSPA (3G) with your FRITZ!Box.

      • Contact your LTE provider.
    • If it is the SIM card you received from your LTE provider and the contacts on it are not damaged:
    1. Place the SIM card supplied by your LTE provider with the slanted edge in the bottom right corner with the contacts facing downwards.
    2. Insert the card holder with the SIM card back into the SIM card slot.

      Fig.: Inserting the SIM card

4 Activating your SIM card for use with the LTE network

The following step is only necessary if the FRITZ!Box displays the message "No LTE network was found within range" or "Could not establish LTE connection. Reason: [...]" although there are LTE networks within range displayed in the FRITZ!Box user interface under "Internet > LTE information > Network List":

  • Have your LTE provider activate the SIM card for use with the LTE network.

5 Enabling roaming

The following step is only necessary if your LTE provider uses another provider's LTE network at the FRITZ!Box's location:

  1. Click "Internet" in the FRITZ!Box user interface.
  2. Click "Account Information" in the "Internet" menu.
  3. Enable the option "Permit roaming".

    ATTENTION!If you enable roaming, additional costs may accrue. Your LTE provider can provide you with information on roaming and possible costs.

  4. Click "Apply" to save your settings.

6 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:

7 Checking the LTE antennas

Mistakes made when connecting the LTE antennas can often be overlooked. Therefore, check whether the LTE antennas were connected correctly to your FRITZ!Box:

  • Check the pin in the connector of both LTE antennas. If the pin is bent or has broken off, there can be no contact between the LTE antenna and the FRITZ!Box.
  • Make sure that both of the LTE antennas included in the package are correctly screwed onto the sockets labeled "LTE" on the FRITZ!Box.
  • Swap the LTE antennas connected to the two LTE antenna sockets on the FRITZ!Box. Check whether the FRITZ!Box is then able to establish an LTE connection.
  • Only if you are using an outdoor LTE antenna: Check whether you can establish an LTE connection if you use a different outdoor LTE antenna or a different LTE antenna cable. This way you can determine whether the outdoor LTE antenna or LTE antenna cable is not suitable or is defective.

    Note:If you are using the FRITZ!Box in the indoor coverage area of your LTE provider, test whether you can establish an LTE connection if you use the original LTE antennas included in the package.

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

      Important:If the FRITZ!Box is located in the attic or on a window sill, make sure that the permissible operating temperature of 0° to 40° Celsius is not exceeded.

    • 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).
    • Position the LTE antennas of the FRITZ!Box so that they are as perpendicular as possible (90° angle). For example, position one antenna vertically and the other horizontally.

9 Connecting an outdoor LTE antenna

The following step is only necessary if you are using the FRITZ!Box in an area located on the edge (outdoor coverage area) of the LTE radio coverage area of your LTE provider:

Note:Internal LTE antennas may not be sufficient for an LTE connection if you are using your FRITZ!Box in the outdoor coverage area of your provider's radio coverage. Your LTE provider can tell you whether you are using the FRITZ!Box in their indoor or outdoor coverage area.

  • Connect an outdoor LTE antenna to the FRITZ!Box.

    Note:If you are using your FRITZ!Box outside of the outdoor coverage area of your LTE provider, outdoor antennas on the balcony or roof may also not be sufficient for your LTE connection.