Hi my router updated today to the new 3.0.0.4.382.18547 firmware version, however this firmware caused the 5Ghz wifi to drop back to 20Mhz wide channels causing the devices to connect to the router at 1/4 of the speed as before.
I tried factory restore and recovery mode NVRAM reset and reinstall each time the same issue occurred.
I have now dropped back to 380.7743 and voila 5Ghz is back to normal using the full 80Mhz channel width.
I have fed this back to Asus today so hopefully...
RT-AC68U firmware 3.0.0.4.382.18547 slows down 5Ghz Wireless.
I tried factory restore and recovery mode NVRAM reset and reinstall each time the same issue occurred.
I have now dropped back to 380.7743 and voila 5Ghz is back to normal using the full 80Mhz channel width.
I have fed this back to Asus today so hopefully...
RT-AC68U firmware 3.0.0.4.382.18547 slows down 5Ghz Wireless.