I have been loaned two 1601-R routers to use to mimic a WAN. I am very new at this, so please don't laugh too hard at my question. I noticed when I accessed one of them via the console port that the serial interface is not recognized by the router. It only shows the ethernet int. I am not using a WIC card, but the serial interface built in to the router. I checked the cables to make sure they were the proper DCE/DTE cables. I noticed that the router did not recognize the Flash. I tried the other router, and it worked fine. I compared the config register and show version settings. Then, on router 1, I finally pulled out the flash card and saw that it was a 1605-R flash IP Feature Set.
Could this be part of the problem? Can you run a 1605-R flash card in a 1601-R router?