Hello,
Make sure to update the bios of the board to the latest version. (Recovery Method recommended if possible)
Install the latest LAN Drivers
http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=16826&ProdId=3030&lang=eng
Then do a CMOS clear of the board by removing the AC power plug for a couple of minutes and removing the rtc battery.
Then plug back the ac power and check if it helps.
All the best,
Regards,
Aryan/
Thanks I will give it a try when I get to work tomorrow.
Hi, has the above solution resolved your problem? I too am running Windows XP Professional on many DG41TY mainboards. All of these systems are experience NIC issues. It is very frustrating, no connectivity, the whole NIC sometimes turns off, somtimes won't pull an IP addy, all sorts of issues that make thses systems worthless. 
Please follow this link for updates to this issue: http://communities.intel.com/message/68810#68810
The problem still exists. The NIC works and then it will stop working. So I am still working on it. I have placed a third party card in the computer temporarily so that I can get the computer on line until I find a solution.
To follow up more on this I have two computers with this same board that are not working. So any computers that have been built with this board have a third part nic card installed just in case the built in nic acts up. That way I can keep the computer on line. I have 6+ of these systems on the domain at this time. So if an Intel tech is reading this, a solution is really needed.
Thanks for replying although, your news is rather discouraging. I had already concluded that an add-on NIC would be necessary but hoped this would work. Did you buy Intel based NICs?
Hi Grandpa06,
I am Intelligent, a user of this forum. I too use DG41TY.
It is too late to answer this and I hope you are reading this. I did not find this thread earlier or would have suggested something.
In Intel boards, Realtek provides the drivers for both LAN and the sound. If any one of them fails, then it affects the other as well. The solution is to uninstall both the LAN and the sound driver.
Then install the sound driver first followed by the LAN driver.
This should solve your problem.
Check the resource setting (IRQs) provided for both these drivers.
If there is a conflict, then you might have to disable the other hardware to use the LAN or the audio port.
Up date me if possible. Although I think its too late. No need for an updated driver. Just the driver on the motherboard driver DVD is enough.
Intelligent
i'am afraid, that it won't help, i also have same problem, ethernet does not recive RX packets at boot stage, after POST... that why it can't boot via network
Hi Gradnpa,
What happened? You have not mentioned what happened next. Have you tried connecting the two computers directly with a cross cable. If that works then you can eliminate the switch or some of the cables as the problem.
Did you install any third party software before this problem arose? You can try disabling the boot through network card option to eliminate this problem as well as to identify that as the source of the problem.
Please update me as a lot of people use this board.
Thanks
Intelligent
Hi Gradnpa,
Have you checked the Windows Firewall connection to eliminate operating system functions as the cause of the problem. Pse update me.
Thanks
Intelligent
Hi Grandma,
I don't use windows... exept DHCP server, the problem was in that device, also helped firmware update on main boards...
best regards, Jogann
