Hi. I have an ASUS laptop running Windows 8.1.
About a week ago, it started disconnecting from my router, each time I move to another room (a room some distance from the router), even though that had never been a problem, before. My other computers had no trouble connecting, no matter where they were.
Then, yesterday, it stopped being able to connect at all, even if it's physically right next to the router. Again, all my other machines can connect without a problem.
On the ASUS, I can see the network, which shows only two bars (it shows all the bars on my other computers), but I can't connect to it.
I tried restarting the router but that didn't help.
I tried ipconfig /renew, ipconfig /release but that didn't help, either.
I tried going into the device manager, deleting the wifi driver and reinstalling it (it doesn't need an update), and even that didn't help. Though, after I did that, when I tried to connect, it asked me for the network security key, and it detected that I'd typed it in correctly, but, after "Verifying and connecting," it said (as always) "Can't connect to this network."
By the way, the same thing happens when I try to connect to an xfinity network that doesn't have anything to do with my router. It's just one that is accessible in my neighborhoods. All my machines except for the ASUS can connect to it, and it also shows just two bars on the ASUS.
According to the Network Adaptor Troubleshooter, I have no preferred wireless networks.