I'm trying to set up Kontact to sync with my Nextcloud. With Gnome on this same machine and distro and the same server and user, the sync worked by just logging into the onilne account, so I'm guessing the problem is with my computer.

I'm using Garuda KDE.
Kontact is version 21.04.3-1.
The Nextcloud server is 20.0.11, its calendar app is 2.3.1 and contacts app is 4.0.0. Running on Ubuntu 20.04, with linuxserver.io docker container setup.

When i try to log into theNextcloud online account, I get the error

"Unable to connect to Nextclud at the given server URL. Please check the server URL."

I can access the server URL (https://nextcloud.myserver.com) with a browser.

When I try to add the Nextcloud account to Korganizer (using this guide https://docs.nextcloud.com/server/21/us ... de-kontact), I get all the way to the "test connection" part, and when i do test the connection, I get the error

" An error occurred: There was a problem with the request. HTTP error (0)."

I get the same error if I try to configure the connection manually.

What could I try next? Thanks.

OK, I tried with another nextcloud provider and it works there. So the problem must be in my Nextcloud install and not my client machine. Weird.