I don't know what happened but after receiving the update the QoS stopped working no matter the configuration I put it doesn't work I just put a priority device and nothing before that version I had...

@eXceps The same thing happened to me. I updated the firmware on my AX6600 Wi-Fi 6 Tri-Band Gaming Router to version 1.2.3 Build 20250603 rel. 66228(5553) and my bufferbloat tests went through the...