@Mockev1z What about connecting the RE315 via the "Quick Setup"? Have you already tried that too? Quick Setup will prompt you to choose a 2.4 GHz network and a 5 GHz network. Verify EasyMesh is still...

@Mockev1z Ok, I see that you use the same SSID for both bands. This could be problematic in your case. The routers that TP-Link designs specially for Internet Service Providers, like your Vx230v, use...

@Mockev1z Hi, Can you please log into the RE315 and show us the "Network Map" screens for the "Router" and the "RE315" like you see in the sample pictures below?

@alect Try the following. - Bring the Powerline adapter from your son's room to where the router is and plug it next to the other Powerline adapter that is connected to the router. - Also power cycle...

@alfredopacino Yes, this appears to be a problem only the ISP can solve. I could not find a manual for your particular ZTE ONT, but the following is from the manual of a similar ZTE ZXHN F600. PON...

@alfredopacino Ok. You can see yourself what's going on here. The router tirelessly sends out (i.e. transmitts, "TX") commands to the ISP, but it never receives ("RX") anything back from the ISP's...