No at all, although the serverice account does need to be a local admin.
Communication between nodes works on trusted certificates, so you need to add the rim nodes in the QMC.
Once the central node has passed the certificates to the rim nodes you'll be issued with a password to enter on the rim node to install the certificates locally.
Once that's done, restart the services and you should see the rim node coming to life via the QMC.
Thanks for your fast reply. Due to the fact that the Servers are not in the same domain und don't share the same service account this QMC functionality is not working as the service refuses a connection.
I solved it now by exporting for each node manually a certificate an importing it on the RIM Nodes. After doing that I could created the trust using the add node functionality as you described it.
Thanks anyway, have a great day