- You will need to purchase a high speed modem. There are many options available but make sure that the one you choose is compatible with your required speed and provider’s network. I chose Motorola SB6121 SURFboard DOCSIS 3.0. Make sure you also have the following information available:
- Your Comcast account number and account phone number (write these down since you cannot access them if you are on online billing and your Internet goes down)
- Other account information such as the last bill date and amount and other personal information
- New modem’s serial and MAC ID
- You will need to contact your service provider to update your billing and modem information. I used the Internet technical support online chat option with Comcast and I am guessing it would be similar on the phone. Here are the detailed steps of the chat:
- I was asked to provide 3 pieces of personal information.
- The person asked for the modem information and had a problem with changing my modem. So I was transferred to the billing department. The transfers are smooth and one person leaves the online chat room and another person comes in.
- The other person asked for 3 pieces of information as well and updated my modem from renting to own.
- I was transferred back to Internet technical support and my modem information was updated.
- I was told that they were having a problem with the provisioning department and I had to wait a few minutes. Eventually, my connection went down. I figured that the old modem was removed from the system.
- I connected the new modem and tried to access the network. Here was my problem:
- New modem kept receiving RESET packets as soon as it would connect to the Internet. I tried to unplug/plug it multiple times but didn’t work.
- After around 30 minutes, I connected the old modem in parallel to my new modem and attached it to my PC to connect to the web.
- I was transferred to an activate modem page from Comcast (after opening the browser). I had to verify my account number and phone number and then I was taken to the next page.
- I started a technical support chat from the new page and asked the person to select the Motorola as my main modem. The Motorolla modem got a RESET packet and when it came back on it was connected to the Internet with no problems.
- I just unplugged the old modem and sent it back to Comcast.
- Note that you cannot have two modems connected to the system.
- I was renting a Ubee DOCSIS 3.0 modem. By upgrading to Motorola, my ping rate dropped by 30% (10 to 7 ms) and Internet upload/download speed went up by around 10-15%.
How to Save on High Speed Cable Modem Rental Fee from Comcast
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