I'm having a problem with a Dell OptiPlex 780, 64-bit, Windows 7, machine that is dropping packets. The NIC is an Intel 82567LM-3 GB. So far I've done the following:
Swapped out the cables on both ends - PC and Switch
Updated the NIC drivers
Disconnected the mapped drives and reconnected them
When I ping the file server from the PC I get a significant % of packet loss.
Also, just to be sure of the cable issue - I connected another computer to the network port in the users office, and all worked well - from the other computer.
Any help will be appreciated. Thanks.