How can I resolve error 0x0000011b on a Windows 7 client connecting to a Windows 10 shared printer?

Several options exist. One is to uninstall the problematic security update (e.g., KB5005565) from the Windows 10 machine (not recommended due to security implications). Alternatively, you can modify the registry on both the Windows 7 client and the Windows 10 print server using the RpcAuthnLevelPrivacyEnabled DWORD value. Set it to 0 on both machines.