I have an 1801 router and am trying to connect to the internet. I have successful connection tests for the ATM0 and FE0 interfaces, but when I ping external addresses from CLI the best return I get is 40% and I can't connect to the internet / ping fr...

I have recently purchased an 1801W. However I can't even connect a PC to the router to configure it. Ethernet cables are used as instructed, but the PC cannot communicate with the router. The IP address has been set as specified in the instructions, ...