Vista - DNS does not connect to one single computer in the domain!

Hello folks!
here is the network admin at GESS,
I have this strange problem!
I have this computer which has been working fine for more than one year!
but one fine morning it just doesn't connect to DNS server!
It doesn't even ping any more!
it would ping other computers on the network but not DNS-ip address!
please help !!
Ali Syed

Try a winsock reset if you are running WXPSP2/Vista you can do this command in a command prompt and then restart the PC.

netsh winsock reset

Reboot and see if that helps.

"It doesn't connect" is not a useful description of the symptom. What exactly does it do instead of connecting successfully? What error messages do you see when trying to ping the IP of the DNS server? It will be a lot easier for others to help you if your description of the symptoms is suitably detailed.

Another thing you might want to do, in your capacity as the "network admin", is to install a packet sniffer (www.wireshark.org), generate a trace of the failed connection attempt(s), and examine the trace to see what is happening.