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Hi,
I have such problem on WSUS classifications I have enabled "Updates, Upgrades" and products I have "Windows 10, version 1903 and later, but all my windows 10 computers have max version 19041.1682 so it is windows 21h1, when I do on client computers check for any new updates it give me that computer is up to date, the same is on WSUS side it shows for that computer 100% installed:
Now when I do on this computer check updates from Microsoft online, then it immediately finding 21H2 update and start to install, then on wsus computer is visible with version 19044.1706.
Why my WSUS do not offer 21H2 upgrade?
You need Windows 10, 1903 and later.
https://www.ajtek.ca/wsus/how-to-setup-manage-and-maintain-wsus-part-3-windows-as-a-service-waas-and-group-policy-administrative-templates/
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But this solutions is for wsus or computers? My problem is with the Server 2016 Datacenter.
You didn't say that. You left it insinuating it's computers you were trying to update.
Server products for updates need the "Windows - Server version 21H2 and later" products checked - your screenshot shows they are unchecked.
Server products also need their product checked - "Windows Server 2016" in your case (because you've shown a screenshot for server 2016).
If your on LTSC (every 3 year - Server 2016/2019/2022) - you'll get the updates through the product name.
If you're on the semi-annual servicing branch, you'll get the update through the "Windows - Server version 21H2 and later" product.
Yes, I want to update my computers through WSUS but the updates do not appear on the server. Excuse my bad explanation. I will try the changes you suggest. Thank you very much.
You're welcome. I'd recommend reading through my guide and other guides on my site. Part 8 explains you should be re-visiting what products are selected on a quarterly basis.
https://www.ajtek.ca/wsus/how-to-setup-manage-and-maintain-wsus-part-8-wsus-server-maintenance/