I use a Netgear WGR614v5 and I cannot get a ping from my LAN nor WAN IP address. I can see them from the router and from ipconfig. I can ping the gateways and dns servers and I do have internet access.
For the router I have set up DMZ and have checked respond to ping on internet port. I have even disabled my Firewalls and the SPI firewall on the router. No dice.