Thats frustrating

I second the notion that your ip was banned by nc’s brute force detection

The silent reconnects of a DAVx client on a phone could easily trigger this

You can whitelist your home routers ip in the config IIRC Maybe not on the LISO container though, IIRC it is less configurable, but doesn’t “just work”, I’d ditch that not nextcloud

Quick fix could be to “DELETE FROM” (or “TRUNCATE” if you are certain nobody is blocked correctly) the table bruteforce_attempts (or smth similar). Although that “dc up && dc down” worked could indicate another issue, as you do seem to have persistence with your db in a docker volume (cred are still there) which would mean the time penalty ran out during restart or oits somethimg else

They can, and probably will, replace the mods I wager

But a bunch of people will be permanently gone by then I hope