Problem: With my newest Windows Client, I can't upload Printerdrivers

Problem

I can’t upload Printer Drivers with my Windows 10 Client

Environment

Windows 10 with Patch Update KB5006670 installed

Solution

Microsoft has created a bug with this update, which makes it impossible to upload a printer driver.

Uninstalling patch KB5006670 resolves this issue. But from our tests it was also possible to resolve the issue by running these commands on the target UCS server:

net rpc rights -U"$samba_account"%"$samba_pwd" grant Printer-Admins SePrintOperatorPrivilege
net rpc rights -U"$samba_account"%"$samba_pwd" grant Administrator SePrintOperatorPrivilege

Where "$samba_account" and "$samba_pwd" need to be replaced by administrative credentials (i.e. a member of the group Domain Admins). The currently granted privileges can be checked by running the following command, e.g. for the group Printer-Admins:

net rpc rights list Printer-Admins -P

Please see also:

See also:
https://forge.univention.org/bugzilla/show_bug.cgi?id=54156

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