Every time I open Server Admin one server complains: (kNetworkError)

Question

Every time I open Server Admin I receive the following error:
+The service has encountered an error. Try to refresh the view (foobar.myserver.edu/Server). Report the problem to the administrator if it persists. (kNetworkError)+
* The error happens only with one of the 6 servers I have on my list.
* I tried running Server Admin from multiple other machines and the issue is always reproduced.
* The problem surfaced sometime last year, and updates 10.5.5 to 10.5.7 have not solved the issue.
* The network is properly setup with Static IP and DNS.
* Running changeip returns: "The names match. There is nothing to change".
* Server runs OD, AFP, MAIL XGRID, WEB, and PCP, all systems are fully operational.
Any ideas where to start?

Answer 1

The same error appeared on my test server at home tonight. I upgraded to 10.5.7 this afternoon. server logs showing:
May 27 22:57:52 advanced com.apple.launchd[1] (com.apple.pcastserverd): Throttling respawn: Will start in 1 seconds
May 27 22:57:59 advanced pcastserverd[6013]: Checking permissions on /podcast
May 27 22:57:59 advanced pcastserverd[6013]: /podcast is not read/execute by other
May 27 22:57:59 advanced pcastserverd[6013]: Cannot launch pcastserverd -- invalid configuration
May 27 22:58:00 advanced com.apple.launchd[1] (com.apple.pcastserverd[6013]): Exited with exit code: 1
May 27 22:58:00 advanced com.apple.launchd[1] (com.apple.pcastserverd): Throttling respawn: Will start in 4 seconds
May 27 22:58:20 advanced pcastserverd[6014]: Checking permissions on /podcast
May 27 22:58:20 advanced pcastserverd[6014]: /podcast is not read/execute by other
May 27 22:58:20 advanced pcastserverd[6014]: Cannot launch pcastserverd -- invalid configuration
May 27 22:58:21 advanced com.apple.launchd[1] (com.apple.pcastserverd[6014]): Exited with exit code: 1
I had had Podcast Producer and Xgrid set up on this server when testing but they have since been turned off.
I went into Settings / Services and unchecked them. The error message has now gone and the other services come on line quickly. The log list is still occurring though. This may stop after a restart, which I have timed for the middle of the night.
Hope this helps.