[Help] Problem syncing calendar and contacts

I have problems syncing Nextcloud on Android. I am using Davx5, two-factor-authentification and app-specific passwords. The error message I am getting is “no caldav or carddav service could be found”.

I have tried unsuccessfully:

  • upgrading Nextcloud from 15.0.4 to 15.0.7
  • temporarily deactivating 2FA and using the login password
  • creating another user account
  • using another Nextcloud instance (also with another hoster)
  • using different app passwords
  • using app carddav sync instead of davx5 on Android

Is there anyone who can help?

Hello!
On your nextcloud, when you go to the global settings, do you have errors?
https://yourcloud.com/settings/admin/overview