I have an Asus RT-N12E and a couple of laptops and other devices that are connected to this router. The wireless connection is working fine on all of this devices until this morning, when on one of my laptops (a msi laptop - windows 7) can't see the router SSID.
I tried and shared my wireless connection from the other laptop (a toshiba - windows 8) with
netsh wlan start hostednetwork and the new created connection is seen by my mobile devices, but not the msi laptop. The msi laptop still sees other wireless networks from my neighbours.
I had this problem before, the only fix was to reinstall the windows