if you want to check whether WAN port is still ok, i think i got the idea of how to do it...
1. Connect your pc to LAN port of your router.
2. Enable DHCP, confirm it is working if you can get IP through LAN port from DHCP
3. Disable Internet Connection type (refer to attachment)
4. Bridge the WAN port to LAN (refer to attachment)
5. Then, re-plug the network cable from LAN port to WAN port (which connected to your pc)
6. WAN port is working if you can get IP from DHCP server.
You can try to ping test (192.168.1.1) to double confirm...
thx for the fast reply... my router gone case... hav to take back to singapore to rma d...