Amazon Fire TV/Asuswrt-Merlin R7000/-50% speed 5GHz

[Sleepy_Eyez]

Hi All,

I have a bit of an issue and I've been searching endlessly with no luck of a solution.

My ISP provides with 150 Mbps.
Amazon FireTV forces to use Channel 36 with 40MHz to get max speed of 70 to 80Mbps. Unfortunately with this setting all my other devices can only achieve 70 to 80Mbps max.
There are only a limited number of channels on 5GHz to connect Amazon FireTV. RADAR channels don't work and not even recognized by the box.
Channel Bandwidth 20/40/80MHz or 20MHz or 80MHz get about 2 to 10Mbps.
I disable beamforming but no luck.

I have no issues with Wired connection. I recently had to move my router to optimized WiFi reception.

Asuswrt-Merlin 380.67 firmware.

Does anyone have a solution?

 

[RMerlin]

You're running a firmware that uses a driver not attuned for that particular hardware. You should test with the stock firmware first.