We are not able to browse the Internet using the Cisco 1721 router. The router is connected using straight-through cable to the T1/smartjack. A firewall sits behind the router. A host behind the ASA5505 firewall can telnet to the router, however cannot browse the internet. The T1 circuit/smartjack has two green light, the lower two lights are amber. Sh ip int br is 'up' and 'down'. AT&T tests the circuit to the smartjack to be good. AT&T's router shows 'down' and 'down'.
I would appreciate any suggestions. the attachment has the config.
With your Smartjack showing amber lights it typically means that their is a carrier issue. I would open a ticket with the provider that the T-1 is down and have it tested. I would work with them to provide a hard loop at the cable end right before your router to make sure the smartjack card is good.
With having an up/down you are seeing the smartjack but not the line.
When you say AT&T Router down down, what is that in the topology?