WiFi networks detected, but not connecting

[hansenn]

Hi,
today on my Lenovo Z370 (Windows 7 Home 64bit), my wifi stopped working out of the blue. The chip works as it is detecting wireless networks, yet when I try to connect to one, it just says that windows was unable to connect. Please help, thanks
PS: if you need to know anything else, just ask.

 

[GokAy]

Please try (diagnostic steps, won't bring your Wi-Fi back):
- Safe Mode with Networking - http://www.sevenforums.com/tutorials/69585-safe-mode.html
- Try another account - http://www.sevenforums.com/tutorials/181024-user-account-create.html

Try a System Restore to a prior date. - http://www.sevenforums.com/tutorials/700-system-restore.html