Hey there again,
after some time now I tried to get stuff together but there is no luck for me far. I also reinstalled SolidCP and put my SQL Database back in there.
After reinstalling and trying to get it to work over the past days now I get the error:"WinRM client received a bad request status (400)" when trying to read mailbox settings. Im quiet sure that this error must be related to my IIS bindings. I feel like I tried every combination of localhost IP or any other IPs related to my network connections. Also when I try to create a new org it says unknown error. The windows event viewer says the same.
Any others who got same problems?
I guess that CU13 is supportet, right?
I even do not know why my clean isntall and attaching the old database did not even work. Is there anything to keep in mind?