I"m doing a migration from LCS 2005 SP1 to OCS 2007 R2. I have the new OCS 2007 R2 pool setup and configured, however I am unable to send IMs to users on LCS from OCS and vice versa. The following error is showing up in the Event Log on the OCS FE server:
Do the certificate name and friendly name on the certificate in LCS need to match?
TLS outgoing connection failures.
Over the past 20 minutes Office Communications Server has experienced TLS outgoing connection failures 12 time(s). The error code of the last failure is 0x80090322 (The target principal name is incorrect.) while trying to connect to the host "FRD01LCSIM01.domain.net".
Cause: Wrong principal error could happen if the peer presents a certificate whose subject name does not match the peer name. Certificate root not trusted error could happen if the peer certificate was issued by remote CA that is not trusted by the local machine.
Resolution:
For untrusted root errors, ensure that the remote CA certificate chain is installed locally. If you have already installed the remote CA certificate chain, then try rebooting the computer.
