@SunnPhoenix Probably if you ask your ISP to stop it's wireless radio and use the AX1900 in AP mode (Case 1) would do the job.

@SunnPhoenix You have to check in OpenWRT community for your particular model but that will void the router warranty. A router like ER605 can do that out of the box. In this scenario you could use...

@Mad_Max-53 Actually when configured in AP mode AX1500 LAN ports work as a network switch - here's how (Case 1) to configure AX1500 in AP mode.

@MPH-RJ Here's an aexample of C80 in AP mode: where 192.168.0.1 is tthe LAN IP address of your main router. C80 DHCP server should be disabled. Make sure you're using C80 WAN (blue) port to connect...

@WifiUser20 When updating to FW v1.3.2 bare in mind this thread and how to mitigate this issue.

@Red1030 Update your router FW to the latest FW release from here. To change your ISP default PPPoE session DNS set these: Make sure that there's no optional settings here: Then test if your clients'...