Have you followed the procedures -- powering down and restarting the cable modem and router together once you have connected them by ethernet cable.
Yes, I have tried everything suggested until I come to the message reading (paraphrased) 'wireless cannot be detected".
Interesting also, when I looked under systems, I found that version 1 was shown under networking, even though my modem is version 6. I guess the software must be the same. Do you think I should check Cisco for a direct download of the software?