said by Christopher :Perhaps get a DOCSIS 3 modem? You aren't going to get ~50mbps downstream with your current modem.
I just got the upgrade here, at least on the upload side. I currently have Blast and my download is still at 30mbps. Upload has doubled though to 10+ mbps. Modem (TM502G 3 in 1 Arris) has been powercycled. Any ideas?