I'm trying to test our new CUPS server. I have the CUPC client on several computers here and it runs fine. I can log into the new CUPS with different usernames and everything seems to work fine (except Exchange Free/Busy status, but that's what I'm trying to test). The problem is that I installed CUPC on my laptop here and I cannot get the presence service to start with the same unsernames I was just logged into on my desktop. I can log in OK, but the Presence server will not connect. I looked in the CUPC log at it's resolving the server name (which is the problem I ran into previously), but it's getting a 503 - Service Unavailable message. It only effects this client. I've seen reference to the 503 error on communication between CUPS and CUCM, but this is just between CUPC and CUPS, right? Any ideas out there?