For those that are using wireless speeds or wired connection behind a router and not getting advertised speeds, there is really a couple things to check which I know will be the cause.
1.) Router, does it support up to the advertised speed? A lot of router these days require hardware acceleration to be enabled to be able to download at the speed you are paying for. Otherwise you are capped even if you are connected through cat5/cat6 cable.
2.) Wireless, if your wireless card only supports speeds of G, that is at most 54 mbps, Wireless N/AC would be the solution to achieve higher speeds. If you are using the Rogers modem as Gateway, then it will support N and AC (5.0ghz) if you have the AC models. If you are using your own Router, once again ensure it is wireless N/AC Capable and your wireless receiver is also N and above.
3.) Ensure that you are not enabling or using QOS, that would also certainly decrease speeds...
Hopefully it helps anyone else that might check this thead about not acheiving the speeds ( assuming cable modem signals are all fine )