asset server: clients cannot connect

First, the setup: I have Unity Asset Server running on an Intel Xserve (2007) under Mac OS X Server 10.5.5. UnityAssetServer runs as a StartupItems script. There is no firewall - the network is completely open and neither this server nor the client computers are running any local firewall software. I’ve just restarted the server this morning and now I have this problem.

The problem: no one can connect to the asset server. Clients receive the general ‘Connection Failed’ to connect to host ‘blah’ at port 10733.

What I’ve done: Tried to connect locally via psql as admin - received the same error. I’ve tried starting and stopping the StartupItem. ps reports the following two Unity-related services:
/Library/UnityAssetServer/bin/ServiceAnnouncer
/usr/sbin/rotatelogs /Library/UnityAssetServer/log/ServiceAnnouncer.log 604800

I don’t think psql is running, but I’m not sure how to find out (I’m used to troubleshooting launchd-managed processes).

Thanks ahead for any help anyone might have!

figured it out: the postmaster process didn’t complete a full shutdown when I shutdown the server. The postmaster.pid file was hanging around in the UnityAssetServer/data directory - removing it and restarting the UnityAssetServer worked.

Thank you very much rikaru!!!