here I currently have the Nextcloud server version 21.0.4. When I open the “Overwiew” page as administrator no updatre is shown there. When I load the page again or return to it later, I see an update to 21.0.5.
If I press the “Open Updater” button, I get a page that says nothing except “Initializing” and “Current version is 21.0.4”. Nothing else happens.
Do you find any more errors in the logs. It could be that outgoing connections are blocked or there is some other problem you don’t get any response from the update servers.
You can try to start the updater from the command line (if you run on a server):
If you are on a Debian/Ubuntu in the main Nextcloud folder:
In my case path to NC /volume1/web/nextcloud…
cd /volume1/web/nextcloud/resources/config
mv ca-bundle.crt ca-bundle.crt.bak
cp /etc/ssl/certs/ca-certificates.crt ca-bundle.crt
chown http:http ca-bundle.crt
chmod 640 ca-bundle.crt