open cmd as administrator
ipconfig /all find /i "DHCP Server"
the DHCP server is usually located in the dhclient.leases file
grep dhcp-server-identifier /var/lib/dhcp3/dhclient.leases
and look for: “optin dhcp-server-identifier ”
ipconfig getpacket en0
(en0 is typically the ethernet adapter. Wifi is usually en1 or en2)
The “Server_identifier (ip): ” entry is your DHCP server’s IP address