Modem recomend

SB4100-0.4.4.2-SCM01-NOSH How would I upgrade the firmware? comcast leases modem.

Doesn't matter if you lease or own, the firmware is chosen by the network the modem is connected to.

I've seen greater than 5 Mb/s with a leased SB 4100 (Software version SB4100-1.4.9.0-SCM00-NOSH).

Comcast in Danbury, CT.

Address scrambled. Replace nkbob with bobkn.

In the Comcast forums, a lot of people have reported difficulty getting the higher speeds or 6 or 8 mb with the SB 4100. Some have suggested asking Comcast to lease you a 5100, or buying a modem of your own.

I had a online chat and they said it max is 6.5MB and under my plan there was no room to buffer for higher speeds. So I would beable to get 4200 or better. I'm hopeing for the latest one though.

I had problems getting the higher speeds and modem would also "lose" the connection repeatedly after the upgrade using the original SB3100 I got when I signed up for the service. After repeated service calls, they finally replaced the modem with a Motorola 5120. Now I get speeds of over 6100+ and modem never loses the connection.

My suggestion is to call them and ask them to bring you a new modem. I was also told you can go to your local office and swap your old modem for a new one.

Good Luck.