You won't be able to get zip ties tight enough to be usefull. If you don't mess with it the chances of it poping off are slim to none, what you need are worm clamps. However if you put a worm clamp on there while it will permanently fix the issue it will certainly void your warranty.
If it's under warranty, I'd RMA, if it's not, a simple one would be construction paper (The one that changes colors if it gets water on it) and a hose clamp.