Is there something wrong with my laptop or my Wi-Fi?

Okay so i have a HP Pavilion TouchSmart 14 Sleebook and my Wi-Fi is AT&T 2Wire Wi-Fi. Okay so my laptop usually works with my Wi-Fi wirelessly but all of a sudden on morning it said that it was Not Connected- No connection available but there was because my iphone was connected to the Wi-Fi but airplane mode is off and my laptop will only work go on line if the ethernet cable is connected to my laptop and this is very impractical Please Help!

Some laptops have a switch on the side (or above the keyboard) which turns the Wi-Fi antenna on/off. Check if yours has this, and if it might have been switched off by mistake.

If using Windows 7, launch the network troubleshooter which will reset and enable any necessary devices and drivers.

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