must be ur wiring in home, node placement where u live etc..
Where I live Cox cable for 2 yrs been nothing but great! both TV and HSI ends I am on the Preffered mid of road pack internet listed as 12M down/1up getting much much higher than that most times esp switching to a new DOCSIS 3.0 4-port modem/wifi recently. a Motorola SBG6580 extreme bought best buy. in fact called up Cox tech support to reprovision modem gateway the Upload now 5M! paying 60 per month for just 3Mdown/less 1M up? u should look into that more. I pay 52.99 for the pack getting 15-30M down/5 Up. plus I could live near front end of the node that makes a difference as well I live in a neighborhood of 11,000 ppl too sure most HSI with Cox.