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Fritzbox: Info LED flashes red what to do?

  • Jan 08, 2026
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If the "Info" LED on your Fritz box blinks in red, it can have various causes. We will show you to reports why your Router is the word and what you can do about it.

The causes - therefore, the Info LED on the Fritz Box

The LED of your Fritzbox can blink for different reasons:
  • During an update of the Router Software.
  • As soon as you security settings to a FRITZ!Wi-Fi USB Stick.
  • In the case of Hardware or software faults (In this case, you should contact the manufacturer directly).
Fritz Box from AVM with the Info-LED

Flash to Update the Router Software

Blinking Info LED after you have carried out Updates to your Router Software to fix the error this way:
  1. Disconnect the Fritz! box from the power.
  2. After 5 seconds the connection to the power supply.
  3. Delete the cache (Cache) of the Internet browser.
  4. Install on the surface of the Fritzbox the Update again.

LED is blinking after the Transfer of the security settings to a Fritz!WLAN USB Stick

The Info LED blinks after you set the security settings to a Fritz!Wi-Fi have copied to the USB Stick, perform the following steps to resolve the error:
  1. Pull the Fritz!WLAN USB Stick from the USB port of the Fritzbox from.
  2. Connect a Computer to a LAN port of the Fritzbox, open the setup page and switch to the menu "Wi-Fi".
  3. Here you can activate the Option "AVM Stick & Surf enable".
  4. Click "Apply" to save the settings.

Fritz Box Info LED different use

In addition to the reasons mentioned above, you can assign the "Info" LED on your Fritz box individually with one of the following function:
  • Flashing as soon as the online volume / the online time is used up.
  • To display a missed call.
  • Look at a new message on the answering machine.
  • View a new Fax.

How can you check the settings of the Fritzbox?

To check how your Fritzbox is set, proceed as described below:
  • Login to your Fritzbox via the Browser, by clicking in the configuration page call.
  • Enter your password and switch to the menu "System - buttons and LEDs". Here you can see what the Info LED flashes.
  • It is a missed call or a message on your answering machine, go to the menu "Overview". Here you will find in the lower area of the pit "calls" and "answering machine", in which you can watch can listen to the corresponding entries in/.
  • You have reached your online volume/your online time, you can adjust this in the menu "Internet Online Monitor" in the tab "price list".
In another practical tip we show you how you can also have faxes with your Fritzbox receive can.

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