warning disconnect Wi - Fi, laptop computer freezes when troubleshooting

I have an Acer Aspire 5742, running Windows 7 Home Premium.I have had problems with my connection Wireless for 3 months now. It keeps disconnecting after 2 min 3. When I troubleshoot the laptop crashes as soon as it comes to solve. I turn off the power button. So basically I can't use the wireless connection and I can't troubleshoot it no more. No one knows how to fix? My network provider is unable to help because it is a real problem with the laptop and not on the network.
Thank you

Hello

Have you used this wireless internet before on the same computer?

See the following help link and check if that helps.
Wi - Fi and in Windows network connection issues:
http://Windows.Microsoft.com/en-us/Windows/help/wired-and-wireless-network-connection-problems-in-Windows

It will be useful.

Tags: Windows

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