Offline Dev App S not connected with the local Build S


I start the build server with heap first and get the info Server running.

Then I start the Dev App Server.
While start I get a warning: Could not open/create prefs root node Software\Javasoft\Prefs at root 0x800…02. Windows RegCreateKeyEx (…) returned error code 5.
At the end I get the info: Dev App Server is now running.

I keep booth console windows open and I can see that the Dev App Server works fine and e.g. stores the data. But nothing on the Build Server console window e.g. when I start Live Testing.

The Build Server runs at and the Dev App Server shows the info: Started SelectChannelConnector@
Could it be that this the issue is?

Many thanks in advance.