Thanks for your kind response. After I review other TP-link product heat issue, yesterday I changed the WIFI transmit power from High to Low and it's help to stable the internet connection. I did...

@Kevin_Z Thanks for your responded, after few round of troubleshooting, I'm noticed the main issue was due to "Heat". My AX72 always operate in first 30 minutes, the disconnection to ISP only...

I'm facing AX72 will auto lost internet connection after 30-40 minutes, devices all LED light is up and showing internet LED light is up. WIFI router status was showing connected to internet, however...