I need help adding a second home internet line to my account for a total of 2 locations

Hello @user_bo6fd8 thank you for reaching out about adding that second location. Are you looking to add a secondary address or are these two in the same address ?(for example additional dwelling unit) Have you checked the serviceability on the new address? What issues are you running into? 

If you opt for an additional address, you will have a separate account number with that address but once that is established you will be able to link these and have access to your different locations when you log in. See here for managing multiple accounts under the same Xfinity ID.