Until recently we were running client 4.83.xx, after upgrading to 4.91sp2
patch kit b the clients are diconnecting from the server and then
automatically reconnecting.

If i watch the monitor->connections and then sort by time i can see people
intermittently dropping off the network and back on again. I've tried the
latest patches and beta patches. The other changes to our environment is
an upgrade from zenworks for desktops 4 -> 6.5.

any suggestions?