@Amandayou-MSFT @Igor Lysenko ,
Thanks for your followups. we have resolved this issue just now and deployment is working as expected.
solution given below -
Issue - Patch deployment is not working and all enforcement status is showing unknown.
cause - secured[HTTPS] communication for SUP was enabled by mistake by other member after site upgrade to current branch[2203]. due to this client were looking for https://sup.domain:8531 instead of http://sup.domain:8530. in our environment secured communication was not implemented.
Solution - after deeply looking into WUAhandler.log it has been noticed that client is trying to connect with https://sup.domain:8531 which is not the correct one so looked at SUP setting wehre HTTPS was enabled. we disabled it and after sometime client started communication to SUP using http://sup.domain:8530 and deployment started and enforcement status getting changed to Compliant from unknown.