The only Vista workstation configured on a Windows Server 2003 Standard SP2 network (15 XP and this one Vista) loses connection to the server. After the connection is dropped I am able to ping the gateway and other workstations on the network, but I am not able to ping the server or access the internet (no DNS). The server is a DC/DNS/DHCP. The machine seems to work fine after a restart but soon drops the connection. My work around now is to use a static IP and the external DNS. This work around does not allow push installs from the server since the Vista is not recognized by the server.