Have to restart pc in every few minutes for internet to work.

From quite some days i am facing this problem. I connect to the internet, everything is working fine when suddenly i lose my internet connection ( The tray icon still shows it's connected and so does the network ) and i am logged off from everywhere. I tried formatting the pc, still the same. And after this happens, if i try to disconnect my connection by clicking on disable or if i try to open the Control Panel or Network and Sharing Centre, it goes Not responding. What could be the problem ?
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More about restart minutes internet work
  1. hardware failure do to age or heat.

    bad drivers

    have you tried a different network card?

    have you checked your hard drive for errors?
  2. Emerald said:
    hardware failure do to age or heat.

    bad drivers

    have you tried a different network card?

    have you checked your hard drive for errors?


    Drivers are updated, i format the pc and reinstalled the OS, i have a laptop which i bought an year and some months back. No i didn't try a different network card and if it's a hardware problem, why does it connect back on restart rather than just not connecting due to faulty hardware ?
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