you should run OCSlogger (I think it's available in the OCS Resource Kit) and run that on the Front End server you're logged in to. That will show you what the MOC client/Lync client and see what is/isn't sent. If its not being sent, then there's a problem with the static route or on the OCS/Lync side.
If not, you can get CTI gateway/SIP proxy traces from CUP to see what's going on there.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.