GS724TP Tunk Port Randomly Disabling

Thank you, wish I was here under better circumstances.

I did disable the L2 Loop Protection.

The problem hasn't reappeared yet, but it still may be too early to know if it has been resolved as it keeps happening 1 week + 1 day after the previous time or so it seems.

I've attached a screenshot of the VLAN port config. I'm not an expert in switching, but I don't see any errors. It's a very basic setup.

VLAN 1 - native VLAN - WAP

VLAN 25 - security cameras/NVR

VLAN 33 - Comcast VoIP phones, self contained as it has it's own modem to the internet

I do have a working theory as to the cause of the problem, the SONOS system installed at the location. They are all hardwired, except 1 speaker which is wireless. When hardwired they are supposed to disable/not use the wireless. These are the only devices on the network with multiple network connections and the only ones that I can see being the cause. While they aren't connected to the GS724TP directly, the wireless access points are and if they are, for some reason, using the wireless network, that may be causing the loop. Yesterday, I manually disabled the wireless option on each of the speakers except for the one that isn't hardwired.

To give a better idea of the physical setup:

Meraki MX67 Port 3 > Un-managed Netgear Switch > Un-managed SONOS Netgear Switch

Meraki MX67 Port 4 > GS724TP Port 24

I really didn't want to make 2 changes to the network at once (troubleshooting 101), but I really couldn't afford to have the network go down again. If the network is stable for the next few days or even the next week, I will re-enable the L2 Loop Protection.