After applying an assigned imaging bundle to selected registered workstations, I reboot the machines. They boot to the ZENworks partition, and land on the multicast screen, and display "Waiting for Master to start", or some such text. They wait for a minute or so and the screen goes black. I then get the above error - Imaging failed with error:190.

I check the workstation objects in ZCC and see the following:

Full Message:
The Action Multicast 112 Image of the Bundle 112 - Multicast Image was not successfully applied to the Device cdss1965
Additional Information:
Master aborted multicast session.
Severity: Error
Date: December 19, 2008 8:58:38 AM
Acknowledged Date: None
Source: /Devices/Workstations/cdss1965
Message ID: Novell.Zenworks.Prebootwork.ERRMSG_REGISTERED_DEVI CE
Probable Cause URL: None
Log ID: 4e25073693c64d440ecf0602c009b73e
Related Objects: /Bundles/112 - Multicast Image

What is the deal? It seems like the server is not kicking off the multicast session as configured...

Anyone else having issues getting the server to start multicast sessions?

It should be noted that I can successfully assign single imaging jobs to single workstations, and that works without issue. For obvious reasons, that is not the preferred way to image an entire computer lab....