Looking on line, some people have advised that the root certificate that the Skype server uses be installed on the local OS X machine, which we have done, and trusted. We have checked that the clock is correct with time on site. Check your device's clock settings, or contact your support team.' Users receive the following error upon trying to sign in ' There was a problem verifying the certificate from the server. I realise that the Skype experience for those on OS X is not comparable with the features of the Windows client, but we have an issue where users on OS X cannot sign in to Skype at all from home. We have a Skype for Business system which works fine for our users.except those on OS X.
