I've got a non-domain joined laptop that I need to get Office Communicator 2007 R2 working on. The server is OCS 2007 R2 and the Laptop is Windows 8.1. When I try to sign in to communicator I get the following error.
There was a problem verifying the certificate from the server. Please contact your administrator.
I am sure this is because there is a cert that I need to install that would normally be in place if the computer was on the domain.
My questions is what certificate do I need to install on the laptop? And will it be on the OCS server or on a domain controller?