You failed to mention that earlier When did this start happening with your laptop?
Problem is, is that I am still not able to connect by just taking the cable from the modem and putting it in my laptop. It still gives me the Limited or No Connectivity message. What is going on?
So it's only when you connect the laptop to the router (via wireless) that everyone's connection becomes abnormally slow? If so, could you please run a speed test on one of the other computers when the laptop is not connected? Do you know what the advertised speeds are for your ISP?