RT-AX82U - high bufferbloat issue

[Roki100]

Hello! so few days ago i bought RT-AX82U, i am happy with the WiFi range and performance but i have an issue with high bufferbloat, i did a test on waveform.com/tools/bufferbloat and got +200ms/D grade, i know this tool is not 100% accurate so i also did a test by pinging my IP via a server and running a speedtest, during download it goes up by like 200ms, during upload it goes up by like 90-100ms, and there comes my question on what do i do to get an A/A+ grade (low bufferbloat in general)? such bufferbloat is not something i expected from such router.
I have Adaptive QoS enabled, however disabling it does not seem to change anything, i also have AiProtection, Traffic analyzer and Apps analysis(Under Adaptive Qos) enabled
I run the latest 3.0.0.4.386_46061 stock asuswrt firmware

 

[bbunge]

I believe that there were issues with the QOS in firmware 3.0.0.4.386.46061. That firmware did not bother my AX86U with a 100/100 connection. I got an A+ from Waveform. Your lower upload may be causing the bad rating.

You did not say if you used manual settings for the adaptive QOS but you should use a setting of 95% of the tested bandwidth.

 

[Roki100]

I believe that there were issues with the QOS in firmware 3.0.0.4.386.46061. That firmware did not bother my AX86U with a 100/100 connection. I got an A+ from Waveform. Your lower upload may be causing the bad rating.

You did not say if you used manual settings for the adaptive QOS but you should use a setting of 95% of the tested bandwidth.

Yeah i used automatic settings as i am not a fan of how manual limits the bandwidth due to my isp sometimes experimenting and giving me 1gig but generally theres what comes with 95% (475/19)

Generally the pings barely jump with 95% manual, so thank you for the help man

 

[bbunge]

You have plenty of download bandwidth. That can be set higher if you want. Play with the upload setting. It can be in 10ths if needed.