that is the only solution found

1. if your are using router provide by maxis, please turn off and back on every 5 to 7 days.

2. change to AX3000 or above router.

my self here using 500mbps maxis fiber. with Huawei AX3000, so far so good. i use to reboot the router every 2 weeks to 4 weeks once. everything is run smoothly.