Info:

I'm currently using another off-brand version of router; Tenda. I have quite a few static IP addresses for servers, cameras, and a few other IoT things.

The issue I'm facing is that I have my home network on a 10.10.0.X/24, 255.255.255.0 address.

10.10.0.15 - 10.10.0.249 is my DHCP pool. The first 2-15 are static addresses I'm saving. 2-14 of which are used for VM Servers and Cameras.

Everything works perfectly when I DON'T have my WAN connection plugged in. Whenever I plug in my WAN it immediately resets the IP / DHCP pool range back to 192.168.0.1

Also, another thing to note is that the internet coming into my home is Coaxial based. So it directly runs into a Netgear modem. 192.168.100.1

Basically this routers only job is DDNS, DHCP, IPTV, PF, and DPH.

How the issue occurs:

I get my AX1500 setup offline that way none of my network / clients get kicked off, 10.10.0.2 - 10.10.0.249 DHCP / Reserved. All AP is turned off.

Swapped it over to an active home network to test and everything communicates seamlessly. 

My issue:

The second I plug the 10.10.0.1 WAN port into my the 192.168.100.1 Modem freezes, and reverts to the 192.168.0.0 LAN / DHCP pool. 

Gives me an error of "This routers LAN and DHCP was reset because of a Front end device conflict."

Am I over looking something? Bug fixes? Any help would be appericated!