3rd Party Router Restarts - Clear all stats because time changed

Wanted to come to this forum as the root cause is from the xfinity Flex box. I've had the flex box for some time but not until this past summer (2024) did it start to affect my internet/router. I have a Netgear gateway that feeds into a TP-Link Archer GX90 (AX6600) that handles the WAN/LAN/Wi-Fi. The signals from xfinity aren't the issue as I do get the speeds I pay for; however, the issue I was having was that randomly the router would restart due to its time being changed. Originally the solution I found was that I needed to change my NTP servers, which did the trick but only for some time. I also tried switching my subnets from 192s to 10s and that didn't work. When the issue persisted, I then tired unplugging power from ALL of my IoTs and slowly added one at a time. Eventually I got to the Flex box and sure enough the issue came back almost immediately. It's odd that it's causing this as this issue never happened before with my other/smaller routers I used to use.

Has anyone else seen behavior like this before? And how did you get it to stop perminately? I'd like to keep the Flex box as that's used in the guest room and I'd rather not have to deal with plugging and unplugging it whenever we do have guests.