Message "security certificate is not trusted"
The web browser describes the connection to the FRITZ!Box as not private or untrusted because your FRITZ!Box's individual security certificate is not known to third party organizations that validate certificates.
MyFRITZ! login failed
You cannot login to the MyFRITZ! Internet platform or the MyFRITZ! home page of your own FRITZ!Box. After you enter your account information, the error message "Login failed" or "Login for [...] failed" is displayed.
Forgot MyFRITZ! password
If you forgot the password for your MyFRITZ! account, request a new MyFRITZ! password and configure it in your FRITZ!Box.
Changing the MyFRITZ! password
You can change the password for your MyFRITZ! account right on the MyFRITZ! Internet platform. After changing it there, also change the MyFRITZ! password in the FRITZ!Box so that your FRITZ!Box can still login to MyFRITZ!.