@Kevin_Z Thank you.

@terziyski I couldn't see the device on the QoS device list either when connected directly to the router but I continued to be able to see it on the DHCP list. Thanks

@terziyski I connected directly to the router via wired and wireless and still cannot ping my laptop from the router. It has to be something with my laptop. You're right. I can ping to and from a...

@terziyski I was troubleshooting earlier after I sent the post. I can't ping my laptop from my desktop PC but I can ping any network device from my laptop. Archer A9 is serving DHCP for my network...

@terziyski I tried to ping and traceroute from the router to my laptop and was not successful. However, I can ping the router from my laptop. As fyi, my ISP router is connected to the Archer A9. It...

@terziyski Hi. I rebooted the router and even the switch but still cannot see my laptop device. Upgraded all my TP-link devices' firmware as well. Any other suggestions? Thanks a lot!