Parental Controls on Arris SBG7600AC2 cannot be set.

After logging into the Arris gateway, the parental controls page is greyed out and unusable, as described at this link:

https://arris.my.salesforce-sites.com/consumers/articles/General_FAQs/SBG7600AC2-Parental-Controls-Disabled/?l=en_US&fs=RelatedArticle

The unusable page is accompanied by a pop-up stating:

“ARRIS recommends using the McAfee Secure Home Internet for Parental Control functions.  Visit the ARRIS Android and APPLE Play stores for the Mobile Application to manage this service.  Please refer to Secure Home Internet documentation at SURFboard.com for more information.”

This message is, of course, somewhat difficult to parse, and references the nonexistent “APPLE Play store”

When downloading the “McAfee Secure Home Internet” app onto my mobile phone (already ridiculous having to do this), I am met with a page asking for my Mcafee e-mail address. When I input my e-mail address, which is already associated with a Mcafee account, I get an error saying “Sorry, we couldn’t verify your email address -- try again.” There are no other options in this app other than dismissing this window or viewing the privacy policy.

The lack of support for such a recent gateway, and destruction of functionality like this, is extremely frustrating.