Purchased new laptop (HP on Windows 8). Would only stay connected to my home network about 30% of the time. Returned the HP, got a new Toshiba, also Windows 8. It won't connect via router at all. Works fine on ethernet cable. Also works when connecting through my iPhone used as a hotspot. Wife's laptop, iPhones, printer all connecting via router just fine. Other particulars: ATT service, NETGEAR modem and router (11n). Anyone got any ideas?