Try running CMD (Command Prompt) and see if you can ping Google.com - if you can, it sounds like firewall, browser settings, or a similar setting right there on the device.

CheetoCat said: View Post
Same thing happened to me yesterday on my flex 3. Upon reboot after the update it flashed an error message about a power driver error and my wifi is connected but says no internet access. Still can't figure out how to fix it.