We recently increased our datacenter capacity and new recently
added resources behave this way intermittently. We only localized
that this is related to recently added hardware, but we still not
fully root cause it. If somebody hit this, please report TCP port
not working to this thread.
Lukas I just checked it and it works for RDP address in your build. Obviously I have no password but I see that RDP client connected and waiting for me to enter the password. Also error in your screenshots suggests that it is internal and unrelated to network connection to the build machine. I would suggest to retry or try connect from another computer.