@vmrao After a few remote debugging sessions with Tassy Wu from the tp-link technical support team and others from the R&D team, the problem was caused by my Brother HL-2280DW Ethernet printer and my...

@vmrao If I connect my laptop to the Ethernet port and then switch back to 5GHz the ping to an Ethernet device works for a short time on the 5GHz connection.

@Kevin_Z It is Archer AX3000. It is working as a router. The laptop and phone are on 5GHz.

I meant to say the PING works when I connect my laptop to Ethernet

@Kevin_Z Hi, I don't know if this issue has been resolved. I have an Archer AX3000 and I am having the same issue of my WiFi devices (laptop, phone) unable to connect to my Ethernet devices (Brother...