@Kevin_Z after changing the settings to 100mbps half duplex and lan cable, the problem still same and cause my download speeds only get 80mbps++, normally can get 105mbps++

@Kevin_Z ISP: Unifi Malaysia The LED light will change to orange, after few seconds, will change to green again. I am using cat5e cable which is provided in the box. I will try to change to 100mbps...

Just bought ax20. Now, i am facing problem. Here's the log 2021-05-11 14:28:54 Led Controller INFO [1146] Start to run WAN1_ON 2021-05-11 14:28:54 Led Controller INFO [1146] Start to run WAN0_OFF...