I've recently bought Samsung m2020/2020w wireless printer, but I cannot seem to connect it to wifi. When trying to connect via WPS, then wireless setup light keeps flasing for 2 minutes but won't connect. Also tried to connect the printer to wifi through my PC via cable, but that gives me "general error". Sent my printer for warranty repair, but it came back as OK (they managed to connect it to their wireless networks). I've switched off my windows firewall, tried firmware update on the printer and connecting it to the router using laptop. Wifi works okay with other wireless devices such as smartphones and laptops.