It appears that machines that have been joined to the domain are unable to connect (or join) a Live Meeting events hosted by other clients. Regular Live Meetings and the test Live Meeting (http://go.microsoft.com/fwlink/?LinkId=90703) work fine.
What's interesting is that an identical system that has not been joined to the domain works. This sort of confirms its some GPO setting that's putting the kibosh on it. Like most we've got loads of GPO's and after running a "gpresult /r" & reviewing the output, I'm not seeing an obvious setting that could be causing this issue.
We are running OCS 2007 and we do have a GPO that applies specific settings, but again I don't see a setting that would break Live Meeting.
The following Office Communicator settings are set to enabled
- Allow hyperlinks in instant messages
- Disable email comparison check for Outlook PIM integration
- Disable PC-to-PC Video
- Disable RCC Forwarding
- Launch Microsoft Office Communicator Tour
- Specify transport and server (Internal: OCS.server:5061; External: OCS.server; Transport: TLS)
- Telephony Mode (2 = RCC Enabled)
The following Office Communicator settings are set to disabled
- Disable Audio/Video Conferencing
- Disable Call Presence
- Enable/disable automatic archiving of IM conversations to Outlook mailbox
- Show notifications for new presence subscribers
We have no settings defined in any of our GPO's for Live Meeting.
Next up I enabled tracing (http://ocsguy.com/2009/10/08/troubleshooting-live-meeting/) and reviewed the logs (785 lines!) and there appears to be a possible DNS issue. I don't understand why but I see it trying to connect to sip, sipinternal & sipexternal.ourdomain.com. Is that the issue? If we're connecting to someone else's Live Meeting, why is it trying to do that?
For what its worth, Live Meeting is not something we use here so we don't have a server.
I attempted to attach the 'LiveMeeting-uccp-0.uccplog.log' but I received a "Body must be 4 to 60000 characters long." error. Needless to say I didn't bother including the pwconsole-debug log here either.
Because the log files are so lengthy, my hand was forced to stick them on Pastebin.
Click here to see the
LiveMeeting-uccp-0.uccplog.log
Click here to see the
pwconsole-debug10.txt