The other day I upgraded my service from the 28/5 to the 50/10 and also got a new DOCSIS 3.0 modem from comcast. Several day's later after using the new modem, I am still only getting 28/5 not the 50/10 I'm now paying for. I've reset the modem a number of times and unplugged it for several minutes at a time but stil no joy.
Any suggestions?