Actually a shame, those are valuable days and i can't run the rented service.
The whole problem occurred in the night when the latest experimental version came out of the game, at least for me that's the case.
Since that night I've been in a reconnect loop, already reset the whole server and even tried the latest stable version, without success tho. I'm glad I've made a backup of the server files and the Mods installed, yet it's still a pain cause I pay for nothing in return right now.
I didn't get a freaking answer to my ticket today and in Germany there is a holiday on Friday in some areas which people are not working, guess that's the case why it will take till Monday till someone looks into the issue.