REPRODUCIBILITY (% or how often): 100
BUILD ID = OS VERSION (Settings > About product):18.104.22.168
HARDWARE (XA2, X10, X10 II, …): X10
UI LANGUAGE: german
REGRESSION: (compared to previous public release: Yes, No, ?):
I have a nextcloud server in my local network ( just a network with access points without internet connection). When I connected to the network and want to perform a backup, the gui tells me “Connection failed. An internet connection is necessary to perform a backup at a cloud provider” so I am not able to make a backup on my own nextcloud server. The server works fine, i sync my cal and contacts with it on the phone. There is an issue to, that the phone does not recognize it, but it seems to work, when the sync is not triggerd manually but with auto sync every 15 min, but that is a different topic. I want just to ensure, that the nextcloud server works fine and is right configured on the phone.
Setup a nextcloud account and run it in a local network without internet access. Configure it on your phone and try a backup.
A backup is performed on a local server, even when the local network has no internet connection
not possible to perform a backup
i am pretty sure, that the problem will relate in a check, whether you are connected to a network or not. But instead to check the connection to a network, the connection to internet is checked.