Temporary error while accessing Sophos Central, please try again

Hi Tobias, Thanks for reaching out to Sophos Community.

Ensure that the default certificate in the firewall is filled and there's an active internet connection.

Also you can login into SSH (Option 5 > Option 3) and check the log file /log/sophos-central.log while you try to register

It worked now. I don't know if i changed anything or if it was a problem on the server (sophos) side. Thank you anyways :)

Glad to hear the issue is now sorted 

Glad to hear the issue is now sorted