@rfsmoura There's other option you may try - using AX50 as a wired extender (AP mode) - using ISP routers's DHCP server to serve AX50 client devices. Since you already have cables to each room in...

@MrKarma The problem may be with your ISP device. There are two options: 1. Call your ISP and ask them to open all ports to the device behind their modem (that would be your C6). Also aks them to...

@MrKarma If you have an ISP device (modem/router) that is configured to do a NAT, then try to configure it in bridge mode (if possible) - thus only C6 will NAT in your network. The other way around...

@Cxoxianuk The 403 error is probably due to the fact that you're trying to access the 192.168.2.1 WebGUI from another subnet (not from its LAN subnet). Try accessing WebGUI on 192.168.1.50...

@Cxoxianuk Yes, that's correct, AX6000 has NAT disable option implemented so it's a perfect candidate to test that. As for which router or all 3, if you provide the updated diagram I can say that for...

@Cxoxianuk Yes, that's what I've meant. For the discussion purposes posting an updated topology diagram would be helpful. There are cheep models on which NAT can be disabled, like Archer C6/A6. But...