I just discovered a major flaw on my AX3000 which is possibly an issue also on other models.

I have a main router AX3000, with a 2nd router acting as an AP (different brand), all in the same network.

My PC is connected to this AP router via LAN. Everything has been working fine and from my PC I could access both web interfaces, the main one at 192.168.0.1 and the AP interface at 192.168.0.xx

I decided to upgrade my AP router to the a TPLink AX3000 as well. This is when the issue kicked in, as while everything works, due to the way the TPLink interface is managed, I can only access the web interface of the AP router from my PC, and I have to connect the PC directly to the main router to access the web interface of the main router (which is not physically possible as I would have to move my PC a couple of floors).

So essentially TPLink routers do not work well together - they are incompatible once you have more than one in your network as the one you are connected to stops you from accessing others in the same network and therefore you will be unable to manage them.

This is a big flaw which must be addressed.