Thanks but my router and Windows 7 were working fine up until last week. I thought it was something to do with the firewall but when I disabled it the problem still kept on continuing. I'm completely baffled by it all and I'm puzzled why the 'NT Kernal & System' process in the Task Manager shoots up the processor when the connection stops. I read on another forum that it was stuck in a loop. It must be related but I just don't know what's causing it.
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