Hi,
1) Try to ping the "Computer1"
2) If it resolves then check the IP address of the same
3) Check with netstat -n to show the listening on Computer1 IP address
4) Check with Net session for opening any session with "Computer1" IP address
5) Track that IP with the help of network guy
6) Find the same computer name in AD, DNS and DHCP
Thanks and Regards, Vikas This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.