Marvell Yukon 88E8056 PCI-E Gigabit Ethernet - ONBOARD Asus P6X58D P

I found this thread and I have the exact same issue. I've been having the exact same issue for some time. I've got the same Motherboard, and same Yukon NIC cards. I've tried new cables, new drivers, Window's Fix It's, I've ran everything from Hiren's I could think of to resolve the issue, removed the drivers and devices, updated the drivers, tried to run the machine off of a wireless even and got the same results. The weird thing is when I drop the internet connection it's not "fully" dropped. I can still use things like Yahoo chat or mine bitcoins (dos) so the connection is still there. I've disabled the IPv6 protocal and uninstalled file sharing for Microsoft. I still am able to get online for a few minutes and then my browser will stop responding. I've tried I.E., Chrome, Firefox, and Safari. Safari actually worked longer and better than the others but is now having the same issue. If anyone came up with a resolution to this initial problem years ago, I'd be grateful for any advise. Thanks!

Oh, I've also replaced my RJ45 cables, set the modem connection up several different ways, running it directly to the modem, running to the router, it makes no difference. The other thing is, just like previous posts - all my other systems work fine. I've got 2 macs that stay connected without issue and 2 other PCs that stay connected as well.

Iamevil,

The Nic on this board is not the best although are used on many other mobo's with success. I had two boards replaced under warranty. The first replacement (refurbished?) board worked flawlessly for several weeks and then the connection started dropping out again; both nics. This board had a later bios. I again received another board to replace it, it was a new board again with a later bios version, and the problem reared its ugly head again.

I like you have tried new drivers, old drivers, disabling IP V6, new cat leads, so on and so on and so on. The problem not solved but discovered, it was a combination of a couple of things, possibly several. Basically my Nics and modem had some form of compatibility issue. It was not the Windows 7 OS software as I did a fresh install on a new HD with no other programs installed and did not allow it update, it did it immediately. The machine was basically as it was from day one when it ran without issue.

I then borrowed several modems from work, wireless and hard wired and discovered that the problem presented itself with only "one" out of the four (I think?) modems, it was an old modem also. I also tested my PC with a $10.00 Belkin F5D5000 v2000 Desktop PCI Card installed, it had no problems at all with any modem at any speed? I got the on board Nics to work at a compromised speed and this was achieved by setting the "Speed & Duplex - to, 10 Mbps Full Duplex" it now never drops out. I could just upgrade my modem or use the cheapie Belkin if I require faster speeds although due to my location 10 Mbps is greater in speed than what I can achieve in my area anyway at present.

So it maybe a matter of obtaining a new modem or cheap Nic, whichever suits? Borrow a couple of modems or take your PC to a friends place and test it with theirs.

I have three machines and this is the only one that has issues with negotiating via the old Billion modem.

You can see in my earlier post that I used the Belkin Nic and it worked - my on board nics work when I use different modems without issue. - Hardware compatibility?

Cheers CC

CC205,
I've tried other nic cards as well as wireless ones (Cisco, net gear) and while the Cisco worked for about 15 minutes I got the same results. I've got a 50MBps download right now so I'd prefer not to drop it down to 10 if I don't have to but I'll for sure try that. I thought maybe by bridging the 2 connections I might get some results as well but nope, I get the same issue. Now, I can't even disable one or the other and re-enable the other to get connection. I used to be able to do that and would get a connection again for about 2 min but now I have to completely shut the system down to connect for 2 minutes. I've got about 20 nic cards lying around, I guess I can give a couple more a shot and see what happens. What a pain!