@erioho Follow this post and check if you can add AX55 to the AX72 Pro Onemesh network. In the thread thread mentioned, this worked only when the Onemesh router is a primary device and the Easymesh...

@MishuRO You can consult with your ISP for the possibility of upgrading the AX10 FW - this can be done manually - details (Case 1). Yes, Deco app should be used for configuring X20 - details.

@Snacr63 Use this guide to configure TD-W9980 in AP mode.

@MishuRO With the second option and Deco X20 in AP mode you'll have Deco mesh. Here's how to setup an ethrnet backhaul with Deco. There's another option - Archer AX10 recently got an updated FW with...

@tcsevens Check this post. The issue you have is probably caused by the ISP Bell Canada router.

@Arquiteto That's correct. If you post the make and model of your modem it will be clear if it has a NAT and works as router or plain modem. In case it's a router and it does NAT, then all 3 Decos...