@derinnoo Configuring TL-WA801ND is a straight forrward process. You can follow this video setup guide.

@Gedikpasha To be able to use an ethernet backhaul for Easymesh, both devices should support this feature.

@frootieeloops It depends on your particular model. I'm using a similar GPON FTTH router in bridge mode so my main router is behind it (exactly that you are trying to achieve with AX12). To be able...

@frootieeloops Can't find thismodel, but if this is a GPON FTTH router you can't replace it with AX12.

@LuizMP No, these are your LAN settings. I've meant on your Internet port settings:

@frootieeloops What's your ISp router make and model. This should be printed on its bottom sticker.