Thanks guys I hawe fixed it now. Here is why!!! I called my isp provider and they told me that i have connected 3 pc trough my cable and that is why it is not possible to connect. I have had some older pc connected earlier and my isp only allow 3 connections .They said that i could get one more connection and then a was online instantly
So all my work 3 days! with reinstalling different os and drivers was totally useless. Another thing is that i also tryed to call the isp provider yesterday and the guy i talked to then told me that it was on my pc the fault was
so hi did not manage his work very vell
The guy i called today told me he imidiatly see the problem and fixed it in seconds .
Hope this can help anyone with same problem.