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Something wrong..crashes + bad ethernet

Last response: in Windows 7
January 24, 2011 12:13:15 AM

I've been running my computer very stable for the past year now. Now, however, something's gone quite wrong and I can't identify why or what's causing it.

The problem is that the computer is crashing, and it's somehow related to whether or not the Ethernet cable is plugged in.

Computer boots, desktop shows, things start to load, -CRASH-
Computer boots, desktop shows, things start to load, -CRASH-
-Cycle goes on-

Computer boots, desktop shows, things start to load, -CRASH-
Computer boots, desktop shows, things start to load, life goes on. No crashing.

If I plug the Ethernet cable in after that, the computer will immediately crash. Following that, at the restart the computer won't POST (get past the very first BIOS screen). I have to manually shut off the computer and then enter the cycle from the beginning.

Safe mode works fine (no networking), with networking I have to remove the Ethernet cord. However when I boot into Safemode (Networking) with the Ethernet plugged in I crash and get a blue screen, which I don't get on a 'normal' boot-up.

ASUS M4a785-M Motherboard, specs in signature/profile.

I have a feeling this is a software issue rather than a hardware issue. I ran something I know I quite shouldn't have; that was my first crash. Following a virus scan, the PC was fine for a day. After my first time experiencing the above cycle I performed a system restore, attributing the anomaly to the virus. After the restore, the compute went fine for another day. Now, here I am back to square one. System restore doesn't seem to fix it anymore.

I'm leaving ESET to run a deep/thorough scan overnight and will check in the morning. I have the computer booted into 'normal' mode without the Ethernet cord plugged in, so everything is running as it would.

Thanks for any help; all is appreciated.
a b 8 Security
a b $ Windows 7
January 24, 2011 6:23:12 PM

have you tried running Malwarebytes in Save Mode. Do a full scan
January 24, 2011 11:15:01 PM

Wouldn't a virus have been ruled out by the system restore? I also ran an in-depth scan with Eset on all drives/memory/network/everything and it found nothing relevant.

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a b 8 Security
a b $ Windows 7
January 24, 2011 11:34:55 PM

an AntiVirus program does not necessary detect all Malware
a b 8 Security
a b $ Windows 7
January 25, 2011 2:31:37 AM

Run through the malware guide in my signature.
March 16, 2011 12:55:06 AM

I've got this same issue in some places.
I go to CSUN, and whenever I plug into the network ports in the coffee shop, my laptop runs for about 5-10 minutes, then I get a bluescreen. I have not been able to determine the specific cause, other than that it doesn't happen if I don't plug in. This only happens when I plug into the network at the coffee shop, not when I plug in anywhere else on campus, and not when I plug in at home.
I'm using a Toshiba Satellite L515-S4010 (stock; no special hardware attached, no custom firmware). AFAIK, everything in it is up to date.
There is no malware or viruses on my computer. I keep it clean, and when I first encountered this issue, I hadn't been using it (online) long enough to have received any (I had it 6 months prior, but I mostly used it for offline work until then).

If you fixed this, please explain how.
December 8, 2011 6:50:02 AM

I have the same issue on a Dell Vostro 1350.

It works at home via the wireless connection, but whenever I plug in the ethernet cable or connect wirelessly in the office the computer crashes after ~1minute.

No viruses detected.

Did anyone come up with a fix for this?