Re-add a computer to WSUS

[KOVID]

I am trying to put a system in WSUS, i have tried pointing it to WSUS site via GPO and have ran gpupdate/force and wuauclt /detectnow but WSUS is not able to detect it in "Computers" section. I dont know what's going wrong. I have added couple of systems in WSUS and i never had any issue but i dont know what's going wrong this time.

[AndyStewart]

First make sure that your GPO is correct and than run /detectnow. It will force system to re-check in, in some cases you will have to wait for 15-20mins. I was running in to same issue with one of my system, i was simply running /detectnow again and again without being patient. Later i waited for 15 after running the command and things went fine after that.