Description Arvid Requate 2023-06-12 18:29:10 CEST

Testing with a Microsoft Windows 11 client showed that it seems to refuse to talk to a UCS Samba print server:

* While the Windows 10 printmanagement app can connect to the UCS (replica) Samba DC, the Windows 11 printmanagement app doesn't show printers and uploaded drivers. After a short while of adding the UCS Samba printserver to the list of servers in the GUI app, it shows a red down-arrow next to the UCS server icon.

* Accessing the printer from Windows explorer (<Windows-E> \\replica.fqdn\ and then double click on any of the shown printer shares) fails with:

 Operation could not be completed (error 0x00000709).
 Double check the printer name and make sure that the printer is connected to the network.

This is due to a change in 22H2:

https://answers.microsoft.com/en-us/windows/forum/all/windows-11-error-message-0x00000709-while/c16a136d-a935-43a2-bbe1-9364a8d9379c ( or https://www.winhelponline.com/blog/printer-error-0x00000bc4-0x00000709-windows-11-22h2/ )

Can be adjusted either
* via GPO: enable "Administrative Templates>Printers>Configure RPC connection settings" and select "RPC over named pipes"
* via local regedit: Create new DWORD value in [HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows NT\Printers\RPC] named RpcUseNamedPipeProtocol and set it to 1 (switching to RpcOverNamedPipes instead of RpcOverTcp)