Dear Parveshpaliwal,                I can't getting into the router via an IP address of a routed port, because the five routers have not set the IP address. And I also try to get to the rommon mode, but I can't type any word in that mode.           ...

Mmoulson1,                  I have used the computer and cable to test another five 2811 routes, and it is ok, so what do you think about it? 

Dear All, Any news regarding this issue ?!! I have the same issue and I couldn't find a soulotion. I have five 2811 routers that have the same problem.James