At least since update 11.2.4 can no longer do imaging. I am pretty sure I was doing imaging fine in 11.2.3a, certain in the 11.2.2 level.

"Preboot server not responding. The product license might have expired."

is not expired, license state shows active for configuration management.
client does PXE to maintenance mode just fine and I can ping the zcm server just fine by short or long name from the maintenance mode prompt.

cannot send or receive images, have tried on a couple different systems.

I don't believe any else has changed in the network except for the ZCM update from 11.2.3a to 11.2.4

Any help would be appreciated.
Thank you,