Please check if the Root CA where you have request the certificate for the Lync server is also a trusted root ca on your client. It looks like the client didn't trust the certificate from the Lync server. This article applies to Exchange 2010/2013/2016 customers only. Skype for Business / Lync Desktop and Mobile clients (for iOS, Android and Windows Phone) can be set up with user's email address and mailbox password only (without the need to enter Internal and External Discovery URLs). Please note: Skype for Business is currently available only to UO employees. Skype for business caches files locally on your PC or Mac to pull information quickly and efficiently. Sometimes you may need to clear your cache to resolve specific issues. This article explains how to clear your cache on your PC or Mac.

Hi.

If I change the username to username@domain.com and put in the password I get the message 'There was a problem verifying the certificate from the server. Check your devices' clock settings, or contact your support team'. Well, it happened when I opened this page! I’m getting this message over and over, at about half the sites I visit, starting a couple days ago, and repairing the Keychain and checking the clock settings have not helped, nor have any suggested fixes I’ve found elsewhere. I’m using the most recent version of Safari (6.1.6) for my OS (10.7.5).

I was running nicely on Mojave (10.14) with Skype for Business for Mac, for almost a year, with no problems.

After I upgraded to Catalina (10.15), I am not able to log in. The SfBfM application runs.

However, after entering my credentials (yes, they are correct), I get an error message:

'There was a problem verifying the certificate server. Check your device's clock setting, or contact your support team.'

I have removed the SfBfM-related files from ~/Library, reinstalled Skype and (what I think are the proper) certificates for our server. No joy.

Any thoughts?

aps

MacBook Pro 15', macOS 10.15

Skype Certificate Error

Posted on Nov 8, 2019 8:42 AM