your right about the program
MAC alternatives
http://www.macstumbler.com/
Perhaps we should try the Mac route, i do not know the MAC very well...
ifconfig
If you log back into the router - with the modem connected to the router
We know the modem works - because you can connect the Mac to the modem and get internet access correct
so with the modem connected to router and you MAC connected to the Router via a cable, power everything off, switch on the modem, make sure all the lights look correct, switch on router - make sure all lights are correct
switch on MAC
loginto the router
Status page
Page 5.1 of the manual
Should see an IP address for the internet
Table 5-1
would be useful to know what you have for those entries ?