What laptop is it? It most likely has a wireless on/off switch and it looks as if it's turned off.
Rik from RCE
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Try turning it off then on again and see if there is any improvement.
Rik from RCE
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If you read ALL of the posts in this thread, updating the driver has already been suggested!!!
Rik from RCE
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update all driver and check whether your wi fi card is properly installed
jingda
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