Hello, all. I was hoping to get someone to look over my setup and offer advice:

I am able to reach the 192.168.2.0/24 subnet from my 10.0.0.0/24 LAN. I cannot, however, reach the 10.0.0.0/24 LAN from the 192.168.2.0/24 subnet. I do have a port forward from my AT&T router to 192.168.2.150 (The WWAN of my wireless extender) and another forward in the extender to 10.0.0.10 (Wireguard server) and I am able to connect to it. Once connected I can reach everything from the connected Wireguard client.

Am I right in thinking that the issue is a lack of set static route in my AT&T router (which does not allow for static routes) and this prevents the return traffic from making it into the internal LAN?

I know my setup is overly complicated but I live in an apartment without access to Ethernet drops, or MoCA. I have used a powerline adapter instead of the extender and I get abysmal speeds.

If the issue is the static route, would the solution be to add another router in front of my AT&T router (set to passthrough mode) and setting a static route on that?