I have seen this issue in many environments and this is usually temporary. If this is still an issue, we will resume troubleshooting.I Just checked the WUAHandler.log agin now its showing the following.
Failed to run BeginSearch() on WUAgent. Error = 0x8007045b. WUAHandler 8/16/2022 7:21:24 PM 27292 (0x6A9C)