MyFRITZ! access to your FRITZ!Box via internet now comes without security information in the browser:

When you access the user interface of your FRITZ!Box from the internet, a security warning may be displayed in the browser. The new FRITZ!OS version enables your FRITZ!Box to receive a SSL certificate for your MyFRITZ! address from the organization Browser access via the MyFRITZ! address to the interface of FRITZ!Box is no longer accompanied by a security warning, since most browsers trust the certificates from

Here's what to do:

1. First you need to register your FRITZ!Box for MyFRITZ! (

2. Enable the option "Let's encrypt" at "Internet / MyFRITZ! Account".

3. Confirm by clicking "Apply" and wait for the status "Certificate issued successfully".

Your FRITZ!Box has the certificate created for your MyFRITZ! address and uses it for browser access to this address, for example when you access your FRITZ!Box via your account on

It's also possible to send links for FRITZ!NAS file sharing (for example photos) to third parties, who'll have access without annoying certificate warnings. This way, FRITZ!NAS becomes an even greater alternative to cloud storage services.


  • To receive the certificate, the TCP port 443 of your FRITZ!Box is open for a few minutes.
  • The certificate is currently valid for 60 days and is then renewed by the FRITZ!Box.
  • HTTPS access to your FRITZ!Box via public or local IP address, "" in the home network or over a DynDNS provider do not use the certificate from letsencrypt. 
  • MyFRITZ!App: After activation of the Let's Encrypt certificate in the FRITZ!Box, the MyFRITZ!App notifies you once about the change of the certificate fingerprint. Select "trust" to continue using the new certificate.