I have to call my cable company and give them my new MAC address correct?

Why such hassle

 

possibly depends on the company some just use dhcp and dont care about the mac.

 

if you plug it in and get the same speeds, dont bother calling

 

If you have cox, just leave your connection unplugged for a while... between 15 minutes to an hour... And the new modem should just work after that

 

i got comcast... im unsure of their policies

 

While i was away at college, my parents signed up for optimum online (cablevision). When i came home a week later, i ran a speed test and was getting only 200kbit. I called them up and they said they didn't have our modem registered. They asked for the brand name of the modem and within a few seconds... BAM! 9000kbit

 

Some use it for security. Some use it to identify the modem, have to know where to send info after all.

 

They're bastards h: