I have a Lenovo X240 running windows 7 64Bit with a N-7260 wifiadapter.
I cannot connect to my home router, my brothers router or my girlfriends router.
I get error"Windows is Unable to Connect to xxx"
Every body else can connect.
I can connect to other wifi networks.
I tried disabling antivirus and firewall software
I tried resetting the router
I deleted all wifi connections and tried from scratch.
No luck