This is a really old message, but if you’re still having the same question i could try to answer, but that kind of message is pretty context dependant. For that specific one, it sounds like your program is trying to access something outside your network, like they have a website they need to access to check for updates or something.
You’re probably getting suggestions for what she should do different because, at least at a starting point, it could just as easily be something her phone is doing before sending as it is something your phone is doing on the receiving end.
I’ve had a phone say ‘video to big, do you want to crop or share through abc app’ before. Don’t recall the exact message, but seems more likely than you phone downgrading something it’s receiving.