wifi troubles
If you have difficulty connecting to a wifi network you are sure that you should have no trouble logging on to, consider folllowng these steps to the remedy the problem. This worked for me tonight when a laptop running Windows 8 didn't connect to a wireless network - I wasn't even prompted for a password.
Open device manager - you can find it with a simple Windows search.
Locate the wireless network card in the Network adapters section. Right click on it and select uninstall.
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3. Restart your PC. Windows should detect the card and automatically reinstall it.
This trick got me back online and working tonight.