During weekend, and sometimes in weekday evenings, the internet connection dropped, the NBN modem's 4 lights are all on, Huawei 659G wifi router's internet light is off. Need to reboot both moderm and router to get the internet back to work. This happens every few hours during busy hours and become annoying. The last time it happened was 21/06/2020 12:50, and another occurrance earlier in the morning about 9:45.
Please help to troubleshoot. Thank you.