SCCM WSUS Update Failed with 0x80244022
When I checked the error code, it said HTTP error 503 from WUAHandler.log, it turned out that the Wsuspool was stopped in IIS, and I have to changed the “Private Memory Limit” to 4194304.
https://tuxpiekiesccm.blogspot.com/2015/09/windows-updates-failed-0x80244022.html