I use an xr 500 router and I have 2 internet providers at my home. 1000 mbps and the other is 100 mbps. I activated xr500 QOS on both of them, but I could not get any efficiency, my bufferbloat tests come out as c or b and I am not happy with in-game use, I constantly experience connection problems.
i tkink qos is didn't work stable..
Bridge mode open (modem f6600p)