A Lync 2013 Edge server is using external, 3rd party certificates for authentication and encryption of data for federation purposes and external clients connecting to the Lync 2013 environment. I’m using Digicert certificates for this since these work fine in almost all situations.
So I got a message from Digicert to renew my certificate, which I did. Renewed the certificate, same Common Name (CN=access.exchangelabs.nl) and the same Subject Alternative Names entries. The order of the SAN entries was different and so was the Friendly Name of the certificate but this should not cause any problem.
Continue reading Polycom CX600 fail to login after Certificate renewal on Lync 2013 Edge Server
When a Lync phone (in my scenario a Polycom CX700 and a Polycom CX3000) is connected to a Computer using a USB cable you can use the Lync client on the PC to logon to the Lync servers. An additional pop-up is shown where the credentials have to be entered:
But the Lync client will not logon and the pop-up appears all the time. At the same time you may see a message like “Cannot download certificate because domain is no accessible. If the problem persists, contact your system administrator” or something like this.
Continue reading Lync client and (Polycom phone) will not sign in