The first question I’d ask is if you’ve got something connected to the “WAN” port of your router. It’s OK if you don’t, just helpful to know what is expected to be up and not.
Your description suggests that there is a mismatch between your /etc/config/wireless and your /etc/config/network
The output of of the following (redacting your IP/MAC addresses if you consider them sensitive) might also be helpful:
ip link # Which interfaces are known and their state
ip addr # Assigned addresses
brctl show # Software bridges established