I got up to 15 hours with zero issues, so that's good. I am still currently continuing some other testing. Now, this next test I'm a bit hazy on how it may work, so please chime in if there is a flaw in this.
Since GW1000 did connect to my AX router, I was thinking that perhaps something on the same SSID was causing an issue (instead of the router itself), which caused the GW1000 to drop its connection. So, I simply created a guest network and only have GW1000 connected to this unique SSID.
I know there's a lot of "if's" in this but, IF there is simply a device connected on the same SSID as GW1000 that was interfering with the connection somehow, would doing it this way (unique SSID for GW1000) potentially solve the problem? Here's is where I mean I'm a little hazy on how this works. Doing it this way would still put the "offending device" on the same network as GW1000, but on a different SSID. Or is this a case of "Nope. IF there is another device causing the disconnect issue, being on a different SSID is irrelevant since it's the same network".
Currently, GW1000 is up and connected on this unique SSID, so I do get to test it at least. My gut tells me that this won't fix it, but it's worth a shot.