Remove Old Modem

I received an email stating that I have an outdated modem on my account.  In my account through the browser, I can see the modem, but there is no option to remove it from the account.  All research points me to the app to remove it, but there is no page in the app that shows this modem where I can remove it.  The support bot will only send me a link to the app that I have already downloaded.  The only posts I see on the internet where people have this same problem and got it fixed is when they publically posted that they have this problem, and presumably they had a human from xfinity manually fix it for them.