ISP inturupted from a system.

December 2, 2016 at 18:51:02
Specs: Windows 7, ivy bridge
my internet cable service has been freezing on me. The fix is simple, unplug the power to my cable modem for 30 second and plug it back in. Then I just renew my ip. Though it has been getting so bad I do it 12 times a day. When it goes out I can renew the IP from my isp but that does not do it. I must reboot the modem, then renew the IP.

I started with the ISP and they did everything including giving me a new different modem, until one day I got to wondering.... I noticed it always goes out when I use a certain computer. So I disconnected it from the network and it ran great for 2 days. During that time I ran combo fix and a few other tools to check for crapware. Today I plug it back and and run a speed test from each computer passing with flying colors. I then walk away and 5 minutes later my wife shouts "hey the net is down". I checked is sure enough its broken again.

The network card is internal (part of the MB).
The system is windows 7
The switch shows it connecting at full duplex 1 gb.
I tried to ping another computer with 100% for a few hours
A self speed test passes ok at the speeds I should get
I tried a handful of spy software checkers
I rebuilt the tcp/ip with the netsh command
I tried another network cable

I'm running out of ideas here, need some advice from the experienced.

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December 2, 2016 at 19:51:02
Network Down means no more internet/LAN traffic? or slow connection?
Do you see any network activity on the "troubled" computer during the Network down state?

What "other" tools did you use to check the PC for malware/virus?

message edited by sluc

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December 2, 2016 at 20:02:53
No its dead, not slow. For example if I ping I get no replies. The troubled computer shows "no internet access" when the problem arises. I have tried spy bot and ad-a-ware happy to try any others.

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December 3, 2016 at 05:47:37

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December 3, 2016 at 10:02:56
Thx for all the help, but looks like I was wrong. Its not that computer, nor any in particular. Now I'm lost.

I had to make a new post because it never fails, people always read the first post and comment. Since the rules have changed its no longer the same issue. Join me here if you like.

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