@omazza To use TP-LInk DDNS service you should login your DSL router with your TP-Link ID - details (Step 4).

@aggrajag You can't do that. Deco mesh is quite different technology from Easymesh or Onemsh - details. You could use almost any TP-Link DSL router and set it in bridge mode (with Wi-Fi disabled) and...

@ArcherC50help Can you describe your network infrastructure (what are devices in your network and how they are connected). What is their configuration - this behaviour could be due to a web browser...

@Kevin_Z The screenshot is from a C64 in AP mode, which I posted just as a visual example. The OP most probably is using his AX55 in router mode.

@Leo1319 TP-Link home grade routers don't support SSH commands. If you open your AX72 Advanced=>Network=>Routing you should see the default route: Destination Network Mask Gateway Interface 0.0.0.0...

@Hunter_JG This sounds awkward. Do you have your both main SSIDs (2.4 and 5 GHz) enabled ? Did you try using a browser incognito tab for setting the IoT SSID (to bypass the browser cache) ?