said by Nightfall:Some things to look at.....
Latest drivers for the motherboard and NIC card?
Has the cable going to the router been replaced?
Is the network card showing disconnected when the computer first boots up from cold boot?
Does it have an IP address at cold boot?
If so, can you ping it from the router?
Can you ping the router from the desktop?
No new changed in the system.
No it doesn't have an IP so can't i can't ping either way.