AVM releases FritzOS 7.20 for Fritzbox 7590

FritzOS 7.20 offers more performance and numerous new convenience functions. By supporting the WPA3 encryption standard, the update also offers significantly more security. Support for new standards when making calls and the encrypted resolution of domain names (“DNS over TLS”) also provide more protection. In total, FritzOS 7.20 brings over 100 innovations and improvements. The rollout of FritzOS 7.20 starts today with the FritzBox 7590, the FritzRepeater 2400 will get the update shortly. More Fritz products will follow in the next few weeks. Users receive the new FritzOS automatically or with just one click on the FRITZ! Box user interface.

All FritzBox models and FritzRepeaters support with the update 7.20 WPA3, the new standard for more WLAN security. The new “Performance Mesh Steering” improves the WLAN connections of mobile devices. In addition, the improved auto channel selection of the FritzBox now also takes into account the WiFi environment of the mesh repeaters. This automatically selects the best WiFi channel for the complete WiFi mesh.

A public WLAN hotspot can now be set up at the guest WiFi access, in which the data is securely encrypted – thanks to “Enhanced Open / Opportunistic Wireless Encryption” (OWE). For example, users in cafés or doctor’s surgeries can safely use a public WLAN hotspot without the need for access data.

Particularly powerful FRITZ! Box models such as B. FRITZ! Box 7590 or FRITZ! Box 6591 Cable now use 160 MHz wide radio channels so that data in the 5 GHz band can be transported even faster in conjunction with compatible WLAN devices.

DNS over TLS (DoT)

With the new device lock, the Internet access of selected devices in the home network can be switched off and on with just one click. The new encrypted domain name resolution, the “DNS over TLS” function, gives users more protection when surfing the Internet. The FritzBox models 7590, 7530 and 6890 LTE support “VDSL Long Reach”. This means that high download rates are possible even over long distances between the distribution box and FritzBox if the network provider already supports this new technology.

Starting with FritzOS 7.20, the FritzBox 6591 Cable and 6660 Cable also have the DVB-C streaming feature. This enables free-to-air cable TV stations to be transmitted at home via WLAN.

Better VPN-Performance

According to the AVM, the transfer speed of VPN connections should almost triple – good for secure data exchange between home office and office as well as VPN dial-in to the FritzBox (for FritzBox 7590, 6660 Cable, 6591 Cable).

In addition, some other improvements have been made, such as restricting the VPN connection to certain home network devices or the possibility to set the support of NetBIOS individually for individual VPN connections.


Nine new ringtones are now available for FritzFon and FritzFon models are given an option to select sound settings for listening to media and phone calls. Entering telephone numbers becomes even easier, as the FritzFon’s smart phone book suggests suitable phone book entries as you enter the number.

With the update, the FritzFon also receives a new start screen for the temperature display of a smart home device from Fritz, such as the upcoming FritzDECT 440 button, the radiator controller FritzDECT 301 or an intelligent switch socket FritzDECT 200/210.


FRITZ! OS 7.20 supports encrypted voice transmission according to the TLS and SRTP standards when making calls, for example on a telecommunications connection. With the update, the FritzBox also supports even more online phone books for the uniform management of all contacts: Apple (iCloud), Deutsche Telekom (Telekom Mail) and those from CardDAV providers. In addition, the update brings numerous innovations to convenience functions such as the answering machine, the fax function or call forwarding.

Smart home

The smart home pages of the FRITZ! Box user interface have been completely redesigned so that the increasing number of smart home devices in the home network can be better controlled and managed. FritzOS 7.20 supports the soon available FritzDECT 500 LED lamp and the four-button FritzDECT 440.

Multilingual user interface and network storage

With FritzOS 7.20, a language and a country can be selected via the user interface of the FritzBox. Up to seven languages ​​(German, English, French, Italian, Polish, Dutch, Spanish) and over 40 countries are available.

Users who use the FritzBox as network storage – FritzNAS – get improved performance when using the Windows network drive function to access the USB storage media. FRITZ! Box now supports the SMBv2 and v3 protocol as of FritzOS 7.20.

According to AVM, update 7.20 can be installed with just one click via the start page of the FritzBox user interface. The manufacturer also recommends that all users check whether there are updates for other Fritz products such as repeaters, powerline products or FritzFon. These updates are also displayed on the FritzBox homepage.

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