Internet drops multiple time a day, power cycling modem brings it back

I have a personally owned ASUS SB8200 that's connected to a Linksys Velop mesh network. It worked flawlessly for several months when I installed everything. A couple months ago I'd lose internet on my network a few times a week and power cycling the modem would bring it back. It's now up to dropping multiple times a day.

When I lose internet I can continue to ping devices across my network, and I can get the internet back by only power cycling the modem and not any of the Velop nodes, so I think I'm zeroing in on it being the modem or something upstream. I did find some other odd behavior - to get to the admin screen on the modem I have to remove the ethernet from my modem->router, hardwire it to my laptop, then power cycle them modem. When I'm done if I plug the ethernet back into the router I won't have any connection on the router until I power cycle the modem again.

Here's the info I got off the modem-