RM Ones (with RM pre-installed XP) do not appear in WSUS

[Michael]

Great stuff, glad this has been solved.

meastaugh1 1-0 RM

[PiqueABoo]

the RM image is to blame

Well yes.. but we won't know that's really RM's fault without knowing more about the WUA on the image. Could be WUA was perfectly fine when they made an image, but it simply doesn't get along with a subsequently released WSUS server. Was it looking for something on your WSUS server to upgrade the client perhaps?

Not that I'd especially tempted to stop and do the forensics once I'd got it working.