Apple HomePod disconnecting from internet

I’m running on a Motorola Surfboard modem and a Netgear Nighthawk router.  WiFi has been great and has not had any issues.  I have a Google Home, Amazon Echo, Nest thermostat, Hue bulbs, iMac, iPad, iPhone, PS4, etc. that work flawlessly on my WiFi.  Yesterday I purchased 3 Apple HomePod devices and connected them to my network.  Every minute or two they all lose internet connection, and about a minute later they work again.  I’ve reset the devices and power cycled my modem and router but the issue continues.  All other devices are working fine.

I called Apple Support and ended up being handed off to one of their senior level techs.  The first thing he asked me is if I had internet through Cox.  He said that they have received numerous complaints similar to mine over the past 24 hours and the common theme is that everyone experiencing the issue has Cox as their internet provider.  Has anyone else heard about this?  The really strange part is how it is only affecting my Apple HomePods and everything else works fine.  

At any rate, they said their engineers are looking into it, but that it might be a good idea to contact Cox to make sure they are aware of the issue.  Any advice on how to get this resolved would be greatly appreciated.  Thanks in advance.