our it-support reported that on two sites imaging using ZDM7 manual
multicast (from one machine to other machines) doesn't work anymore,
actual img sessions goes ok, no errors, but cloned machines goes into
Win XP boot loop.

When doing manual unicast img from server to same machines it works ok.

How can it be? Same data going, just a bit different way.

ZDM configs have been the same for a long time. Changes are just on the
image side, new software, size grown.