Pankajuuuuu wrote @DarthAbhi this version is v 1.6 firmware I have ax53 v1, for which the latest firmware is the one I mentioned earlier. There might be other universal firmware from other h/w...

@Pankajuuuuu This was tested on the latest firmware version [1.4.4 Build 20250603 rel.74380(5553)].

I can confirm that enabling the built-in QoS on the AX53 significantly increases bufferbloat under load. In my testing (80–110 Mbps connection), the results were as follows: QoS OFF Upload latency...