The request failed with HTTP status 503: Service Unavailable.

Hi,

I tried to get update information from a wsusserver in a remote domain and recieve the following error "The request failed with HTTP status 503: Service Unavailable."
i'am able to add the server in the eminentware "Update Services" part. I can even browse trough the AD structure via  "microsoft windows network"part, get info from servers in that domain. But when i try to get info via "Update Services" i receive this error.

Any ideas?

Grtz. Hans