Recently I found there's somthing wrong on my computer.
I can't connect to internet normally. When I start running my computer,
It looks like everything is OK. But, it's weird that inernet can't link to any
website after my computer ran half or one hour or so. I tried to refrsh page,
it's unuseful. I went to internet option to go through connection and check
setting, I could not find any problem. I don't know why my computer got trouble
like this. Can anybody here give me instructuion to solve this problem? I get crazy!

Thanks in advance.