Traccar -> DuckDNS -> Android Client

Hello Everyone,

I hope i put my question in the right category.
last week i configured DuckDNS for HA, everything works fine.

However i cant get the Traccar android client to connect to the server anymore…

Iam using this URL for the android client :
Also tried adding “:” followed by a port number.

The server it self is not showing any issues.

I just shows “failed to send” i cannot find any log that is more specific.

I already openend the needed ports “8072, 5055” No luck… Anyone else have/had this problem?

Any help would be really appreciated, i have been fighting with this issue for a couple days now…