My onboard ethernet port of my motherboard "gave up the ghost" last week and I purchased a new Swann PCI ethernet card.
It uses the infineon AN938B chip.
The onboard ethernet port is disabled in BIOS.
However I can't get it to communicate at 100mpbs to my router only 10mbps.
If I select either "Autosense" or "100 TX Dual" in the preferences I get a random blinking of the lan led on the router (with no connection to the internet) , but if I select "10 TX Dual" in the preferences then I get a solid connection and no trouble with the internet.
I have changed the cable and which port I connect to on the router to no avail. I can connect a laptop and a xbox to the router and have no trouble with the internet.
I have the latest driver for the card from the manufacturers website.
I am running a P4 system using Windows XP SP2 with the latest updates.
This is driving me nuts.