@Kevin_Z I've done reset to its factory default before I upgraded the firmware. After the firmware is upgraded, I reconfigure again from the strach. I didn't configure arp binding, but configuring...

@Kevin_Z After the firmware upgrade, this router is still unstable. I have to restart it every days, otherwise, all connected IoT devices cannot be accessed after a few days later. Seems this router...

@Kevin_Z Hello, I have followed your advice to update the firmware and no longer using arp binding arp, just dhcp address reservation. I will monitor the stability of this router for a few days....

Hello, I'm having problems with the TL-WR820N. Router Model: TL-WR820N v2 Firmware Version: 1.4.2 Build 191129 Rel.51095n(4555) This router is configured with the following settings: Operation Mode:...