as my Windows Server 2019 already connected to internal WSUS, but it is not able to check for updates for Windows Server 2019 unless clicking "check for updates" button in Windows updates panel, but it will download and install updates as well, what I want is just to check for updates and show what updates are available in Windows updates panel.
(By the way, Windows Server 2016 is workable when I run usoclient startscan in cmd.exe)



