I have a new HP Z220 SFF Workstation.
I am running Windows 7 Ultimate 64-bit.
The LAN adapter is running very slow.
I have run benchmarks using LAN Speed Test (Lite) - this shows speeds of about 0.5 MB/s.
This is about 1/20 the speed I get between other PCs on my network.
I have also tried using a different network switch, so I am 100% sure it is the LAN Adpater that is at fault.
The LAN Adapter is an Intel Corporation 82579LM.
The driver version is 220.127.116.11.
When I get Windows to automatically update the driver, the result is: "Windows has determined the driver software is up to date".