Windows 7 nodes are unable to reliably be on the network. Issuing a pin to a Win7 node returns random packet loss, and in a traceroute win7 node always have at least one of the three test hops miss. Sometime the win7 nodes will randomly drop off the network. I have tried every combination of network settings possible, and nothing makes a bit of difference. I have tried IP4 only, IP4 & IP6, with/without QOS, with/without each or all Link-Layer options, DHCP/STATIC, 100/Full, Auto/Auto, etc. All Win7 nodes are unable to stay connected to the servers making work unreliable. All XP and UNIX/LINUX nodes are flawless and have full connectivity. Rebooting Each Win7 PC into a Live Linux CD works flawlessly, after Win7 updates the issue still is unaffected, after installing new drivers the issues still persists, nothing can be done to even make a difference. Windows 7 must have a bug with Networking and I am surprised that it would even be released with such a major issue.