Netware 6.5 clustered servers, Zen7.0 installed.

Setup a multicast session, either through console1 or manually at the
imaging console.

All the clients join the multicast session, but then sit there waiting for
the master to join the session.

Previously when I have done this at another site using zen6.5, the
workstations join the session and as soon as they are all ready, bang, off
they go.

Any ideas?