Date, time, time zone settings

Can you look at the WindowsUpdate.log file for one of those clients? 

side note: Microsoft changed the way you view the WindowsUpdate.log file in Windows 10.

     https://support.microsoft.com/en-us/help/3036646/how-to-read-windows-update-logs-in-windows-10-version-1607

Are there any indicative errors in there?   I've seen a blog post where the time time looks right in both places (client and WSUS) but something else is really going on:
Nerds Know Best: RESOLVED - We couldn't install updates because there's a problem with the date and time information on …

Can you look at the WindowsUpdate.log file for one of those clients? 

side note: Microsoft changed the way you view the WindowsUpdate.log file in Windows 10.

     https://support.microsoft.com/en-us/help/3036646/how-to-read-windows-update-logs-in-windows-10-version-1607

Are there any indicative errors in there?   I've seen a blog post where the time time looks right in both places (client and WSUS) but something else is really going on:
Nerds Know Best: RESOLVED - We couldn't install updates because there's a problem with the date and time information on …

I was just looking at that article as well. I will double check my certificates. The windowsupdate logfile returns the following:

Which leads me to believe I've got some serious issues with my WSUS server. What ever they are it's not affecting win7 or server updates as these clients are reporting and updating fine. That's why I'm thinking the certificates are ok. It's only an issue with Win10 clients every other OS is working.

Thanks.

LOL teach me to reply before refreshing the page...