I need to get a second IP address for my SB8200. I have a work from home device that needs to connect to the internet directly. Can someone help me please?
First, check the "Rate Card" for your local area to see if that feature is even available anymore. Seems that it is being phased out;
It's a PDF.
Scroll down to "Xfinity Internet" and look for "Additional IP Addresses".
If nothing is listed then it's likely to have been discontinued in your local market area.