Running Server 2012 with Exchange 2013 since 2012, all ok. SSL Cert ran out recently, bought new from Comodo. In the old UC Cert I had 4 names incleded: mail.domain.ch, autodiscover.domain.ch, hostname.domain.ch and the hostname alone. Comodo (and probably other Certs) do no longer accept single hostnames in Certs so I omitted that. Now login to EMC is no longer possible and Outlook can no longer connect. EMS works but obviously with limited command set. Tried Set-ClientAccessServer command. It is not recognized as are others. There are some commands working with "get-excommand" but not those needed to configure FQDN instead of hostname to access the Server. Any help is greatly appreciated.
Marcel