QUOTE(zher4883 @ Nov 21 2017, 01:56 PM)
Asus router with Broadcom SoC generally runs hotter but usually not hot enough to warrant a worry. What's the exact temperature? My Asus RT-AC66U runs at 60 degree C.
I dont know the exact temperature, but this is what I found out.
1) Normal internet surfing / streaming -> no problem
2) Heavy download -> After 5 hrs, wifi malfunction.
3) Heavy download with modem elevated few cm from the surface -> After 12 hrs, wifi malfunction.
4) Heavy download with modem elevated few cm from the surface and fan directly blow onto the modem -> After 24 hrs, no problem
So, it's looks clear to me the heat is the main issue here. When wifi malfunction, i still can connect to the modem using ethernet port and connected to the internet. Changing wifi channel doesn't help.