Then just today, I found out that I can connect back to the WiFi by disabling my network adapter then enabling it. When that happens, I try the on/off thing again but it won't work unless a day or two passes by first. Sometimes I'm able to connect by turning my router on then off, then it suddenly turns into a limited connection. It connects to other WiFis, like my school's and fast food places without a problem, but it won't connect to my home WiFi.
I bought a new Toshiba Satellite e45t with Windows 8.
