Hi, I have a large workgroup with a mixture of XP and Win7 workstations, each daisy-chained to network through its VOIP phone (Cisco). The Win7 workstation of the boss and only this machine, has an issue with connectivity. The network icon in the systray shows a red X and the Network Sharing Center shows the computer is not connected to anything. Furthermore, Explorer displays a message saying the computer is not connected to a network, even while the internet works and all the shares, mapped drives, and workgroup members show up fine and are accesssible under "Network". We would ignore this funkiness, except that randomly the computer will lose all connectivity for hours on end and then regain it spontaneously. I tried creating a new user profile and resetting power saver modes for the NIC, but with no effect. Is there anything else I should try?