We have 3 primary ZCM servers on SLES10 SP2 and none of them have reported a refresh since Dec 17th when we upgraded to 10.2.2.

Within ZCC they report: "Unable to connect through IP address or Host Name"

When I click Refresh Server I receive a "Connection Failed" message.

Finally, when I type 'zac ref' on a server I get this error:
Exception: Connection refused

What's going on?? I can remote control devices, log in, and refresh devices. But the servers are being stubborn.