I'm told that you need to call Cox and they have to do something on their end to get it up and working. I don't know squat, but that's what my wiser friends just told me. It's not as easy as just changing the equipment.
Thank you for reaching out to Cox Social Media team. I can help! Let me take a look into this for you. Please send an email to email@example.com including this post, full name, and address. We will reply back once we get the email. Thanks