AIO install unable to connect to domain

The contents of the support template would be a good start. :wink:

Nearly all of those errors appear to be because your instance is unable to connect back to itself.

The url in overwrite.cli.url in your Nextcloud config (as well as trusted_domains) are utilized for the setup checks.

So check:

  • the values there
  • whether your Nextcloud container can connect to its own URL (by running curl or similar from the command line in the container)