I have a laptop with an onboard Intel wireless N 7260 network adapter which is unable to see my wifi network. I tried using a USB network adapter (realtek RTL8188EU wireless Lan 802.11n) I still couldn't see the network. I can connect to the network and Internet via ethernet. This computer that is having the issues however has never had any problems with seeing and connecting to other networks. All other devices I've tried (other laptop and cell phone) can see this network and connect no problem. It seems to be an issue with this one computer and one router only. I'm not sure what to troubleshoot next any ideas?