Following the update of the Android Nextcloud application, I no longer have access to my server, on another smartphone with the old version, access is correct.
the application developer advised me to remove the IPV6 configuration from my server, which I did but the access is still not correct: “could not find the host”)
Without any information about your environment, your network incl. DNS, a DETAILED description how you’re trying to access your server, e.g. over the LAN or the Internet, it won’t be possible to give you any advice. “could not find host” is usually a general DNS problem and has nothing to do with the Nextcloud app.
Same problem here since the update to 20.0.3. Access through web browser, macOS client or iOS client is still working (and i can ping the server from the network), but the Android client on all our chromebooks (v3.14.1 on Android 9) can’t connect to the server anymore (it was ok with 20.0.2) throwing the error message “server not found”. Seems as something changed from 20.0.2 to 20.0.3.