I have an 1811W router with IOS 12.4(24)T. I used CCP to configure the router because SDM stoped working. Currently nothing gets out either WAN port(both ethernet). A test on the WAN connection gives me a DNS error. I configured the DNS servers, NAT, static routes and lastely the firewall, however nothing is getting out. If I open a web browser to the IP address of the WAN IP, I get the 1811W's web page, not the next hop router's web page.
I have this problem too.