DavDroid not Finding CalDav / Carddav service on nextcloud (brute-force protection / rate limit)

[Sulumar]

Hello guys

I am running a nextcloud instance at home that serves as a caldav and carddav server.
I have used Davdroid before for this and it always worked fine.

Trying to set it up now i get the message that the Caldav/Carddav Service can not be found
I know they are running because both my Laptop and my PC do successfully sync calendar and contacts with the nextcloud instance.

The nextcloud is not routed to the internet and the sync will only happen while i am home, which is intended.

Anyone a clue why the phone wont sync ?

Here is the debug from Davdroid
https://pastebin.com/3w4aNDMq

[Sulumar]

Ok, whatever that was, reinstalled and tried again now it works

[rfc2822]

HTTP 401… Perhaps Nextcloud Brute force protection / Rate limit?