Martin, honestly Nextcloud runs poorly on the Pi 2. It is bad. I’ve been testing NextcloudPi on all architectures for almost 4 - 5 years. The Pi 2 is not worth running Nextcloud on. Seriously. I strongly recommend just setting up a disroot.org nextcloud account for free, cause the pi 2 is simply too old.
Maybe, but as long as I don’t even get past activation I have little or no confidence this problem to disappear just by installing on better hardware. It’s not a sporadic issue; it realibly doesn’t work and looks like a bug to me …