- FRITZ!Box 7272
- FRITZ!Box 6890 LTE
- FRITZ!Box 6840 LTE
- FRITZ!Box 6820 LTE
- FRITZ!Box 6660 Cable
- FRITZ!Box 6591 Cable
"Power" LED flashes
The FRITZ!Box's Power LED flashes? ✔ Here you can find out what this means and how to solve the problem.
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. It stays lit as soon as the connection has been established.
This guide shows you how to resolve the following error:
- 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."
- "LTE connection could not be established. Reason: network timeout."
- "Could not establish LTE connection.
Simply proceed as described below. After each measure, check whether the problem is solved.
Note:All instructions on configuration and settings given in this guide refer to the latest FRITZ!OS for the FRITZ!Box.
1 Checking the event log of the FRITZ!Box
- Click "System" in the FRITZ!Box user interface.
- If the FRITZ!Box user interface cannot be opened, follow the instructions in our guide FRITZ!Box user interface cannot be opened.
- Click "Event Log" in the "System" menu.
- Click on the "Internet Connection" tab.
- If the FRITZ!Box indicates that the LTE connection is established temporarily and drops repeatedly, follow the instructions in our guide FRITZ!Box reports that the LTE connection drops frequently.
2 Checking whether the LTE network is supported
The FRITZ!Box supports LTE networks in the 800 MHz and 2.6 GHz frequency bands. The FRITZ!Box does not support other frequency bands.
Note:The FRITZ!Box does not support the 1.8 GHz frequency band used by some providers in some areas, for example. Information on the frequency band used in your local area can be obtained from your LTE provider.
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:
- Press the SIM card briefly to remove it from the SIM card slot.
- Check whether it is the mini-SIM (25 x 15 x 0.76 mm) SIM card you received from your LTE provider and that the contacts are not damaged.
Important:You cannot use micro or nano SIM cards that have already been punched out and inserted into a SIM card holder or SIM cards intended for mobile connections according to the mobile standard UMTS/HSPA (3G). SIM card holders can get jammed and damage the SIM slot.
- If it is not the mini-SIM card you received from your LTE provider or the contacts are damaged, contact your LTE provider.
- If it is the mini-SIM card you received from your LTE provider and the contacts on it are not damaged:
- Pick up the FRITZ!Box so that you are facing the underside of the device and can read the "SIM Card" label on the SIM card slot.
- Insert the SIM card into the SIM card slot with the slanted edge of the card on the left and the contacts facing downwards (see fig.).
- Push the SIM card gently into the SIM card slot until it clicks into place.
Fig.: Inserting the SIM card
- A few millimeters of the SIM card protrude from the SIM card slot.
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:
- Click "Internet" in the FRITZ!Box user interface.
- Click "Account Information" in the "Internet" menu.
- Enable the option "Permit roaming". If the option is not displayed, enable the Advanced View.
ATTENTION!Enabling roaming could result in additional costs. Information on roaming and possible costs can be obtained from your LTE provider.
- Click "Apply" to save the 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 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:
- Click "Internet" in the FRITZ!Box user interface.
- Click "LTE Information" in the "Internet" menu.
- Click on the "Reception" tab.
- Click the "Start Alignment Aid" button.
- Now the current signal strength of the antennas is displayed by the LEDs on the FRITZ!Box (in five levels) and in the user interface.
- Select a location for the FRITZ!Box where the signal strength is as high as possible. When doing so, note the following:
- Do not set up the FRITZ!Box in the corner of a room.
- Place the FRITZ!Box as close to an outside wall as possible. If you know where your provider's LTE radio cell is located, place the FRITZ!Box by the wall facing the LTE radio cell.
Important:If you place the FRITZ!Box in the attic or on a window sill, make sure that the permissible operating temperature of 0° to 40° Celsius is not exceeded.
- Place the FRITZ!Box so that it is as unobstructed as possible, i.e. not directly in back of or under an obstacle such as pieces of furniture or a heater.
8 FRITZ!Box is unsuitable for use in LTE outdoor coverage area
If you are using the FRITZ!Box in an area located on the edge of the LTE radio coverage area (outdoor coverage area) of your LTE provider, the integrated LTE antennas may not be sufficient for an LTE connection. Therefore, the FRITZ!Box cannot resolve this issue.
Note:Some FRITZ!Box models allow you to connect an outdoor antenna (for balcony or roof, for example). These models are suitable for use in outdoor coverage areas. Refer to our sales team for information on these models. Your LTE provider can tell you whether you are using the FRITZ!Box in their indoor or outdoor coverage area.
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