Monterey CalDav Issues

Hey all,

Just bought a new M1 Mac Book and am having issues connecting to my Nextcloud CalDav and CardDav accounts. It appears the connection method has changed in the new Monterey update. I have a 2012 Mac Mini which I connected the same accounts on when it was using Big Sur. It has been working great on there and still does.

However, my new Mac cannot connect. I attached some screenshots of the old mini configuration and the MacBook one.

Any help is appreciated on how to get this working.

Thanks,

Aidan.