Authentication - I must be really dumb

Came back from a 3 week holiday. Updated, because that’s not normally an issue. We now need authentication. Joy!

It says:
User Name
Password

I have neither, but I do have the original password which I’ve never had to use in the secrets file. That does nothing.

Can’t get in. Read the release notes. no joy: the prompts set up a new user account etc just aren’t there Am I the only one this dumb?

Edit: running on standard docker image on a synology NAS.

Try starting your browser in Incognito mode.