I HAD been getting ~ 30Mb/s "Down" until I recently replaced my DOCSIS 2.0 Motorola SB5100 with a DOCSIS 3.0 Motorola SB6120. Comcast is DOCSIS 3.0 in my area for no extra cost so why not, right?
Wish I lived in CT and had Comcast.....oh wait, I do and I do...
That's why I shut off my wireless and switched to the Airport Express. I still need my FiOS router for my set top boxes.
So...what's the actual service tier you are on?