"Ethernet" Connection Drop

I get the same issue but restarting my network adapter (Marvell Yukon PCI Gigabit Ethernet Controller) works for me. I do not have the option "Receive side scaling".
Mine does seem related to starting my torrent software, though it occasionally happens at random times.
I have a batch file to restart my network connection. Not sure if this has been covered in the thread but it is possible to use DevCon to restart the network adapter:

Restart a Network Adapter from the command line using DevCon
=============================================
The DevCon utility is a command-line utility that acts as an alternative to Device Manager.

1. Download DevCon:
The DevCon command-line utility functions as an alternative to Device Manager

2. Unzip and copy the relevant (to your OS) version (32-bit or 64-bit) to the Windows\System32 folder.

3. If you are confident you only have one 'PCI' network adapter on your system, or you have more but wish to restart all of them, you can just open a command prompt (as an administrator) and enter:

devcon /restart =net PCI\*

(this is the command I use as I only have one PCI network adapter installed)

3. If you have more than one PCI network adapter and just wish to restart just one of them then you will need to find them all by searching the 'Net setup class'.
Open a command prompt (as an administrator) and enter:

devcon /find =net PCI\*

As I have just one PCI network adapter installed. The above command returns:

C:\Windows\system32>devcon /find =net PCI\*
PCI\VEN_11AB&DEV_4320&SUBSYS_811A1043&REV_14\4&1B359D48&0&10F0: Marvell Yukon 88
E8001/8003/8010 PCI Gigabit Ethernet Controller
1 matching device(s) found.

4. You will need to determine which is the one you wish to restart. You only need to use the first few characters in the returned string to identify the ID of the device. In mine it is:
PCI\VEN_11AB (everything before the first & 'ampersand' character).

So to restart it I would enter:

devcon /restart =net PCI\VEN_11AB

5. You can also search for all 'Net' setup class' devices (for instance if you have a USB one) by using the command:

devcon /find =net

6. Again, once you have located your device you can restart it by using the above commands. e.g.

devcon /restart =net USB\VEN_11AC

7. Once you have identified the command to restart your network adapter you can save it into a batch file and execute it (as an administrator).

PaulJones said:

I get the same issue but restarting my network adapter (Marvell Yukon PCI Gigabit Ethernet Controller) works for me.

Why do you not simply remove/uncheck the allow to shutdown in power management option.
sure would be faster and easier.

Snuffy said:

PaulJones said:

I get the same issue but restarting my network adapter (Marvell Yukon PCI Gigabit Ethernet Controller) works for me.

Why do you not simply remove/uncheck the allow to shutdown in power management option.
sure would be faster and easier.

Are you referring to the option: "Allow the computer to turn off this device to save power" on the Power Management tab for the network adapter?
If so this was the first thing I tried. It did not work

I've also had problems with my Ethernet connection. It was dropping almost everyday, very randomly and I have an Nvidia nForce 10/100/1000 Ethernet adapter. The other day I disabled from cmd (command prompt) some options related to IPv6 and looks like the connection has been working correctly since then but I cannot guarantee yet that this is a permanent solution. These are the commands you have to enter in cmd:

netsh interface ipv6 6to4 set state disabled disabled

netsh interface ipv6 6to4 set routing disabled disabled

netsh interface ipv6 isatap set router default disabled

netsh interface ipv6 isatap set state disabled

netsh interface ipv6 set teredo disabled

If the operation was succesful, when you type ipconfig in cmd you should see only your IPv4 parameters (something similar with my printscreen). I would be glad to receive some feedback regarding this possible solution.

PaulS said:

I've also had problems with my Ethernet connection. It was dropping almost everyday, very randomly and I have an Nvidia nForce 10/100/1000 Ethernet adapter. The other day I disabled from cmd (command prompt) some options related to IPv6 and looks like the connection has been working correctly since

I believe the below registry change achieves the same thing:

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\TCPIP6\Parameters]
"DisabledComponents"=dword:000000ff

I made this change along time ago and I certainly have no IPv6 references showing when I check with ipconfig.
I still get my network connection dropping off.

Yes, mine started to drop off again today. I've tried everything but nothing works. I'm thinking to buy a PCI network adapter. Is this going to change anything or it's more likely a router/gateway problem?

PaulS said:

Yes, mine started to drop off again today. I've tried everything but nothing works. I'm thinking to buy a PCI network adapter. Is this going to change anything or it's more likely a router/gateway problem?

I have the same or similar drop out problem.

I did disable my MB's onboard Realtek 8111 ethernet and tried a D-Link PCI ethernet adapater. It made absolutely no difference. So my advice is to save your money because this is unlikely to fix the problem.

I also bypassed my router and went straight to my WISP's broadband antenna connection and still had dropouts. That rules out my router.

I tried all other fixes on this thread. With W7 launching this week I'm hoping this issue gets addressed soon. This thread already has 30,000 views so once W7 hits the market I expect many more users to have this problem. However I have no idea why only some users are affected??

My theory is that it's W7 does ethernet differently then Vista and that most ethernet drivers or the OS itself needs updating. Either that or there's some interaction with the internet itself. My exact same H/W works perfect in Vista.

There are still more questions then answers.

In my case I wanted to buy a PCI card because if I get the problem again, at least I will have another Ethernet adapter to plug my cable, for now I got a USB-Ethernet adapter which I don't really like and a wireless, not stable enough for my PC usage (work).

I will tell you if I still have the problem with the Intel card soon. I should receive it this week, I assume it will take 1-2 weeks to know if the problem occurs again.

Thanks for the replies, guys. I really hope there is a solution because everything else seems to work very well in Windows 7.