Thanks for the quick reply, TomG.
thanks to your link I remembered how I did it for the other nodes. The txt.file was placed in localuser/appdata/blah and I tried to mimic this for the new node.
Dr started fine like:
2016-07-21/17:33:50 DR server started
2016-07-21/17:33:50 Starting UDP socket, local hostname: Xeon-1
2016-07-21/17:33:50 Running Corona DrServer build Nov 3 2015 on ports UDP19666, TCP19668, loopback TCP19667
this looks just like the (working) node
2016-07-21/10:56:22 DR server started
2016-07-21/10:56:22 Starting UDP socket, local hostname: I-7
2016-07-21/10:56:22 Running Corona DrServer build Nov 3 2015 on ports UDP19666, TCP19668, loopback TCP19667
But Xeon-1 still can't be found.
One thing: In the working node's directory there are other files like licensing.log and a token. I remember reading or doing something about a token.
any ideas? thanks