How to find WAN (external) IP address of router connected to broadband cable modem? Router was set as IP Client, to share existing Internet connection in the network (not NAT). I am not sure does it connection settings was configured to obtain the IP address automatically(DHCP), or IP address has been configured manually to some values. It works, but it WEB interface is not accessible anymore, either via default local IP adress, or via spare local IP address, neither of them work anymore. Windows configured to obtain an IP Address Automatically. Is there utility allowing scan local network and discover EXTERNAL IP address of router?