In the specs on http://www.pcadvisor.co.uk/review/gaming-pcs/eclipse-supernova-i5r285oc-desktop-gaming-pc-review-3605090/ I read nothing about WiFi. That's quite common in a desktop, to come without WiFi. I think you can call that a "known issue" indeed.
It might be better once you installed the right hardware and the drivers that came with it.
Moreover, gaming via WiFi generally is not recommended (too slow). Better do it via an Ethernet cable. But that's your own choice, crippling a new gaming PC by using WiFi.
As above have a new desktop with W10 and it isn't picking up wifi. I know it is a known issue and have tried all the fixes I can find as well as downloading a driver and moving it onto desktop via USB. I am not sure what driver I need exactly as desktop is Eclipse SuperNova i5r285OC and ASUS is motherboard. Does anyone have an suggestions?