Ok, found the culprit : https://msrc-blog.microsoft.com/2021/08/10/point-and-print-default-behavior-change/
Windows 2019 RDSH server - regular user can't connect to printer anymore
lolix3
166
Reputation points
Since our recent patching round, regular users can't connect to shared printer anymore (driver already present on the RDSH server)...
Windows Server 2019
Windows Server 2019
A Microsoft server operating system that supports enterprise-level management updated to data storage.
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Windows Server
Windows Server
A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.
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Remote Desktop
Remote Desktop
A Microsoft app that connects remotely to computers and to virtual apps and desktops.
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Limitless Technology 39,906 Reputation points
2021-09-06T11:56:24.697+00:00 Hello @lolix3 ,
It seems that you are affected by this behavior after the patch for PrintNightmare exploit.
Please check the next document for how to deploy printers after that: https://support.microsoft.com/en-us/topic/kb5005652-manage-new-point-and-print-default-driver-installation-behavior-cve-2021-34481-873642bf-2634-49c5-a23b-6d8e9a302872
Hope this helps you orientate,
Best regards,