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Update for Fritzbox and Co.: All functions and new features

Update for Fritzbox and Co.: All functions and new features

Berlin router manufacturer AVM regularly releases updates for its Fritz boxes and other Fritz devices. These include, for example, repeaters, powerline adapters, but also Fritz phones. TECHBOOK has the information about the latest updates.

AVM offers a wide range of different devices, most of which ship with new firmware updates over the years. Updates bring numerous innovations to Fritz boxes, repeaters, and powerline adapters, but often fix minor issues as well. In advance, the company usually prepares so-called release candidates in a lab for the current major Fritzbox update. New features will also continue to be tested via minor updates from the Fritz lab. Here you can find out for which devices AVM is currently offering an update.

Keep in mind:

In the list we include updates to the official Fritz!OS as well as the latest lab builds. Since AVM first tests new features in the Fritz lab, the software may cause minor problems during operation. Therefore, please note our comments we give about setting up a Fritz lab.

Current Fritzbox updates at a glance

Lab Upgrade for DSL and Cable Fritz Boxes

AVM is fast approaching the release of the next great Fritz!OS. However, until 7.50 is ready, the router manufacturer will test the new features in several lab updates. Tal is currently available for numerous DSL and cable Fritz boxes. The update includes numerous adjustments and optimizations.

A total of five different Fritzboxes get the upgrade: the Fritzbox 7590 AX, 7590, and 7530 DSL models, as well as the Fritzbox 6660 Cable and 6591 Cable routers. The same points can be found in the changelog, which lists all the new features of the Fritzbox update. Consequently, there are not only adjustments to the system, AVM has also improved several points in the Internet and WLAN area. This includes bug fixes for parental controls and guest WiFi access, improvements to WiFi frequency band choice, and stability improvements for VPN connections via Android devices. These are the news in detail:


  • Fixed The FRITZ!Box sporadically set the ICMP identifier for ping calls to 0, which made “host monitoring” difficult.
  • Fixed Calling up a list in a parental control access profile started print preview
  • Fixed After importing and using a simplified WireGuard VPN configuration for company dial-up on a FRITZ!Box (as a home device), it was not possible to reach the FRITZ!Box from the company network
  • gets better Stability improvements for VPN connections (Android) over IPSec IKEv2


  • Fixed When the 2.4 GHz frequency band was disabled on the “WLAN / radio channel” page, the WLAN standard settings were reset
  • Fixed When MAC address filtering was enabled on the “WLAN / Wireless Network” page, login attempts were not always recorded in the “Show failed login attempts” list.
  • Fixed Push service for guest access to WLAN did not work
  • gets better Added a corresponding event log entry for a temporary channel change on channel 36 during ZeroWaitDFS (5GHz band) (7590, 6591)


  • Fixed Calling direct help for event messages was not linked

Cable Internet is fast, but it’s not always a better option. We explain why:

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Also read: The best routers with Wi-Fi 6

What’s new in the current FritzOS

With the current Fritz!OS, AVM offers numerous new features and optimizations for your Fritz devices. These should not only increase the performance of the Fritz boxes, but also improve WLAN connections from mobile devices, allow faster and more stable connections via VPN networks, and ensure more security in the home network. In general, AVM is introducing innovations in all the main areas, such as Internet, telephony, smart home and home network.

Read the linked message about the settings and features that Upgrade to Fritz! OS 7.25 and above included.

Fritz-Labor: That has to be considered

If an update comes from the Fritz lab, other conditions apply compared to official updates. Because with lab firmware, AVM is testing new features that will then become part of the main official firmware update in late August or early September. It therefore has a beta character. The manufacturer also notes that problems may arise when operating the software.

Users can try out a Fritz lab if the current FritzOS is installed on their Fritzbox. However, before installing the software, the router’s data and settings should be backed up to be safe. Once this is done, users can install the lab firmware in the Fritz lab on the avm website Download and save to your computer as a ZIP file. After unzipping the file, the following steps are required for installation:

  1. Open the Fritzbox interface in the browser with and, if necessary, enter the password for your Fritzbox
  2. At the bottom of the menu, you will find the “View: Advanced” footer that you need to enable
  3. You will now find the “FritzOS File” tab under “System / Update”
  4. In the input field, select the path to the previously downloaded and uncompressed ZIP file and click “Start update”

Also read: The Best Fritzbox Alternatives for Every Budget

If the lab firmware is already installed on the Fritzbox, a new update will be offered automatically. Please note that the update process may take a few minutes. Meanwhile, the information lamp of the router flashes. When the update is complete, the Fritzbox automatically restarts. Data and settings are not lost, so the router is ready to use again as usual.