The latest lab file on our download server, "fritzbox-7590 AX-Labor-XXXXX.zip", contains
- the lab version for your FRITZ!Box
- this "infolab-en.txt" file with important information on this lab version
- information, feedback options, and the file at en.fritz.com/fritz-lab


**New features:**

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- The new Online Monitor offers a clear graphical overview of the internet usage of top consumers and selected home network devices
- Mesh optimization - for greater stability and improved data throughput, FRITZ!Repeaters independently select the ideal connection in the Mesh
- More options for triggering routines in the smart home and many other interesting new features
- The new, easy-to-use FRITZ!NAS sharing function makes it possible to share a folder, for example to collect and share photos after a family celebration
- Simplified user guidance for the parental controls - access profiles and the home network devices assigned to it are now clearly displayed
- Protection against internet connection failure: FRITZ! Failsafe automatically switches to a substitute connection, for example via mobile network
- Reduce the FRITZ!Box's energy consumption with EEE (Energy Efficient Ethernet) Can now be individually configured for the WAN or LAN sockets

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With each FRITZ!OS update, AVM also updates its security functions. Therefore we recommend performing the update for all devices.

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Below you find a complete list and descriptions of the new functions in the latest FRITZ!OS, along with a list of further improvements in this version.

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# New features and improvements in FRITZ!OS 8.20

## Internet:
- **NEW** With the new internet fallback protection, the FRITZ!Box always stays online: If the internet connection fails, an alternative internet connection is established via an access device, e.g. via the mobile network with FRITZ!Box 6820 LTE or via USB mobile network dongles  
- **NEW** Online Monitor shows the network devices with the highest utilization of the internet connection (top consumers)  
- **NEW** The Online Monitor for "individual devices" also displays the total current utilization of devices that were not selected individually  
- **NEW** Simplified user guidance on the "Filter" pages (parental controls)  
- **Improved** In the Online Monitor the display of the utilization of the internet connection allows selection of not only one day or two months but also an interval of 2 weeks  
- **Improved** Device selection for display and data recording simplified in the Online Monitor  
- **Improved** Reworked diagrams and colors in the Online Monitor  
- **Improved** Online Monitor: Reworked display in the diagrams for the utilization of the internet connection  
- **Improved** Improved stability when there are many simultaneous requests to internet services  
- **Improved** Port 443 (HTTPS, QUIC) is taken into account when the network application "Surfing" is prioritized  
- **Improved** In the access profiles for parental controls, it is now possible to select whether network applications should be blocked or allowed  
- **Improved** Number of tickets to extend online time for devices blocked by parental controls was increased from 10 to 12  
- **Improved** In the parental controls, limited online time for a network device can now be easily extended by 45 minutes

## Wi-Fi:
- **NEW** Operating mode Mesh Repeater: Use FRITZ!Box 7590 AX as a Mesh Repeater, e.g. after replacing the FRITZ!Box on the connection

## Mesh:
- **NEW** Automatic detection of device type (e.g. smartphone, computer, or printer) for devices displayed in the Mesh Overview
- **NEW** Intelligent networking: FRITZ! products in the Mesh assess and optimize the connections among each other
- **NEW** Simplified login to Mesh Repeaters via the Mesh Overview of the Mesh Master

## Telephony:
- **NEW** Caller announcements for the integrated answering machine can now also be entered as text (text-to-speech)
- **Improved** Support for the Vodafone IP Anlagen Anschluss

## DECT/FRITZ!Fon: 
- **Improved** Podcasts can automatically continue from where they left off, even after a long interruption  
- **Improved** Revised menu order and dialogs in the FRITZ!Fon user interface

## Home Network:
- **NEW** Save energy in the home network: EEE (Energy Efficient Ethernet) can now be set separately for each WAN/LAN port  
- **Improved** Completely reworked network settings for improved user-friendliness

## Smart Home:
- **NEW** In the FRITZ!Box user interface of the Mesh Master, the registration of smart home devices with another FRITZ!Box or a FRITZ!Smart Gateway can be started  
- **NEW** Data read by the FRITZ!Smart Energy 250 from the export meter is shown under "Smart Home > Devices and Groups"  
- **NEW** With FRITZ!Smart Control 440, the following functions can now be controlled: the boost and frost protection functions for radiator controls, color and color temperature for lamps, activation and deactivation of routines, and the display of the QR code for Wi-Fi  
- **NEW** Routines can also be triggered by a phone call, by reaching a target temperature, or by activating boost or antifreeze functions, as well as by important events on the FRITZ!Box  
- **NEW** Templates and routines can be triggered with delay  
- **Improved** The schedule for a radiator control can be disabled without discarding the configured schedule  
- **Improved** Roller shutters can now be combined into groups

## Storage (NAS):
- **NEW** Upload sharing: Via fritz.nas a folder can be shared for users with a sharing link to upload and download contents, e.g. to collect photos after a family celebration  
- **Improved** Better interoperability with FTP applications (e.g. Filezilla) through support for MFMT command  
- **Improved** Simplified generation of sharing links to access files saved in FRITZ!NAS

## Security:
- **Improved** Push mail now also sends notifications about logins from FRITZ!Apps

## System: 
- **Improved** File name for saved settings now includes name of individual FRITZ!Box  
- **Improved** The "Diagnostics > Function" page now displays information on problems with time synchronization via NTP  
- **Improved** If the configured/provisioned time server fails, automatic switch to public server  
- **Improved** "Forgot Password" function of the push service can now be configured with a freely chosen recipient  
- **Improved** Functional diagnostics now indicates when access for apps (TR-064) is disabled in the home network sharing settings  
- **Improved** Reworked pages of the update functions under "System > Update"  
- **Improved** Reworked user guidance for backing up or restoring settings  
- **Improved** Warning on the overview page when push service is interrupted  
- **Improved** Push service emails now clearly differentiate between function and security diagnostics through specific subject lines, adapted email texts, and file names  
- **Improved** Accessibility support for FRITZ!Box, FRITZ!Mesh Set Master, and FRITZ!Fon (in accordance with GAA Ordinance)

## Mobile Network: 
- **Improved** Support for the execution of service and control commands in the mobile network (USSD over IMS)

# Additional Improvements in FRITZ!OS 8.20

## Internet:
- **Changed** FRITZ! devices in the home network, e.g. FRITZ!Repeaters, are no longer offered in parental controls and prioritization; they always have unrestricted internet access with normal priority  
- **Changed** Private IPv4 addresses (RFC 1918) are no longer posted via MyFRITZ!Net (DNS) if a publicly accessibly IPv6 address is available  
- **Changed** When VPN connections are active for which all network traffic is routed via the VPN connection ("full tunnel"), the guest network is excluded from this and routed over the normal internet connection  
- **Changed** Number of network devices for which the saving of internet data rates can be enabled was increased to 40  
- **Fixed** Enabling the UPnP filter had no effects for IPv6  
- **Fixed** For providers without support for IPv6, the Online Meter did not count consumption values as long as IPv6 was enabled in the account information of the FRITZ!Box  
- **Fixed** Possible internet disruptions when using a large filter list for blocked websites  
- **Fixed** For FRITZ! devices operated exclusively via IPv6, under some circumstance there was no search for new FRITZ!OS versions (updates)  
- **Fixed** Creation of new WireGuard® VPN connections could fail if many WireGuard® VPN connections had already been created  
- **Fixed** Under certain circumstances, a FRITZ! device operated exclusively via IPv6 could not obtain the system time via the Network Time Protocol  
- **Fixed** The rate information in the Online Meter showed an incorrect end of the billing period  
- **Fixed** Parental controls: Redeeming tickets to extend online time failed in certain scenarios  
- **Fixed** Potential incorrect display in the Online Meter of the use of data capacity during the billing period

## Home Network:
- **Fixed** In rare cases the information on a new network device in the home network was not immediately entered in the event log or change notice  
- **Fixed** In special scenarios it was possible for the IP address 192.168.178.1 to be displayed for a repeater in the home network instead of its own address  
- **Fixed** "Home Network > Network Connections" page was not displayed (empty page) when a FRITZ!Box was configured as an internet gateway and a Mesh Repeater

## System:
- **Fixed** Push service sent the Forgot Password link of devices configured as IP clients with the incorrect IP address  
- **Fixed** Despite correct rate settings, the "Info" LED did not flash when online volume exhausted  
- **Fixed** Preview of personalized subject line from push service shows the suggested parentheses only if they were actually entered

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History of New Functions and Improvements in FRITZ!OS 8.24
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# Improvements of FRITZ!OS 8.24 within FRITZ!Labor


# Additional Improvements in FRITZ!OS 8.24-127390

## Internet: 
- **Improved** Better interoperability with newer browser versions
- **Improved** Detailed rendering of fallback protection in Online Monitor 
- **Improved** Operation of schedules in the parental controls reworked for small displays (smartphones, tablets) 
- **Improved** Support for fallback protection also for primary internet connections with a fixed IP configuration
- **Improved** Support of IPv6 configuration for fallback protection 
- **Fixed** IPv6 addresses were not displayed in full in the overview of WireGuard® connections
- **Fixed** Internet access (remote access) to the FRITZ!Box could be configured only while the FRITZ!Box was connected to the internet
- **Fixed** The "Fixed bandwidth reservation for the home network" option did not always work 

## Home Network: 
- **Fixed** In special scenarios it was possible for the IP address 192.168.178.1 to be displayed for an extender in the home network instead of its own address
- **Fixed** Names of home network devices were occasionally assigned incorrectly
- **Fixed** Under some circumstances active devices with static IP addresses were displayed as inactive and vice versa 

## System: 
- **Fixed** Under "Network Connections" in the FRITZ!OS interface, "connected with FRITZ!Repeater" was sometimes shown twice

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Additional Feedback on FRITZ!OS
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In addition to direct feedback in our lab area en.fritz.com/fritz-lab, there are three additional feedback functions in the user interface which provide information. We have automated the processing of feedback supplied by these functions.

1) DSL feedback via "Internet / DSL Information / Feedback"
2) Wi-Fi feedback via "Wi-Fi / Wi-Fi Network": Feedback icon after the clients
3) VoIP feedback via "Telephony / Telephone Numbers / Voice Transmission", "Other" column: Feedback icon after each call

Information on the Lab update:
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This FRITZ! Lab firmware is a beta version. We've tested it in standard environments before release, but it may still result in bugs. AVM is not liable for any damages that may arise from the use of the Lab version.

Information on working with Lab versions

We appreciate any feedback from our users, which can be submitted at: en.fritz.com/fritz-lab. This page also lists all of the current FRITZ! Lab versions with corresponding feedback areas.

Before you start testing the Lab version

1) You haven't installed the latest firmware for your FRITZ!Box yet? You first need to update the firmware to the latest release.
2) Save your current settings under "System / Backup". The saved settings will be needed if you want to switch back from the Lab firmware back to the release firmware.


Testing the Lab version

Once the latest FRITZ!OS version has been installed on your FRITZ!Box and you've saved your current settings, you can begin testing.

1) Unzip the "fritzbox-yyyy-LabBETA-xxxxx.zip" file.
2) Use the FRITZ!Box user interface to install the update:
- Select "View: Advanced" in the footer.
- Click "Update" in the "System" menu.
- Switch to the "FRITZ!OS File" tab.
- Follow the instructions displayed on the screen.
- Enter the path to the Lab firmware and the name of the Lab file (FRITZ.Box_xxxx-0x.xx-xxxxx-LabBETA.image) in the input field.
3) The Lab version is installed on the FRITZ!Box. The FRITZ!Box will then restart.


Restoring your device to how it was before testing
You can switch back to the official FRITZ!OS at any time under "System > Update > FRITZ!OS Version" or reset the FRITZ!Box back 
to the official FRITZ!OS using the enclosed Windows program "recover.exe" (included in the Lab package).

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FRITZ! GmbH 2004 2025. All rights reserved.

This FRITZ! GmbH firmware package contains files that are distributed under various licenses, in particular under an FRITZ! GmbH proprietary license 
or an open-source license (GNU General Public License, GNU Lesser General Public License or FreeBSD License). For details on the various 
licenses, see the "license.txt" file (https://download.avm.de/fritzbox/license.txt).
The source code of the files distributed as open source can be requested in writing to fritzbox_info@avm.de.

FRITZ! GmbH grants the non-exclusive right to use this FRITZ! GmbH firmware package, which is supplied exclusively in object code format. 
The licensee may create only one copy of the software, which may be used exclusively for backup purposes.
AVM reserves all intellectual property rights except as expressly granted herein. In particular, without previous approval in writing 
and except as permitted by law, this FRITZ! GmbH firmware packet may not be reproduced, distributed or in any other manner made publicly accessible, nor may it be edited, disassembled, reverse engineered, translated, decompiled or otherwise "opened" in whole or in part, and subsequently reproduced, distributed or made publicly accessible
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AZI 11122025