XR1000 ping spikes, poor connection and bufferbloat

I've attached it, nothing seems to change when I use the sliders, QoS is enabled as well as Goodput.

So everything works as intended, including QoS? I've got no idea how to know if QoS works, other than that I'm assuming the sliders will now have the intended effect?

It's always misbehaving for me, now my download speed to Waveform's bufferbloat test is stuck to 200 and upload to 2, I can't seem to make it work no matter what I do, at the minute I have Congestion Control disabled to start from scratch but it doesn't change the speeds, nothing really takes effect.

I'll give that a go, ideally I'd want to be able to stream at the same time though.

Yeah I'm unable to control this router, my download speeds sometimes show above 500 which I don't have and sometimes it sits itself back at 200, bufferbloat is out of control, not really sure how to tackle this.

I was messing around with the sliders and I did Waveform's Bufferbloat test and speedtest.net by Ookla to confirm that it works as intended and at one point my download speed was 800, and I can't really tell what went wrong. I saw Fr33thy had a video where he had bandwith share enabled, default settings basically and he managed to get +0 +0 on Waveform's test right after doing absolutely nothing, so I can't really tell what went wrong.

Speeds I pay for are 500 and 50, speeds in my old router were set to 512 and 51.2

Speeds are consistent now, and they adjust accordingly to congestion control however not a single number from 100% to 1% provides me with a suitable bufferbloat result, it's always a horrible +15 at best, won't get lower than that.

After giving up for a minute I tested the connection in a game of Counter-Strike, no bullets hit for me, people kill me while sprinting in a straight line and most of the time I don't see them, playing from my neighbours house never provided this kind of gameplay, I'm hoping it's safe to assume that bufferbloat causes that kind of gameplay.

No Geo Filter in particular, I've set my address and left it default, I tried the Connection Benchmark and Waveform's test, my ingame ping looks decent, quite low however the bufferbloat in tests is still present and it seems like it plagues my gameplay.

I've attached a screenshot of my Waveform bufferbloat test and a few others along the way considering I can only add one at a time.

I've now defaulted everything and set up my router so that I can try to find the sweet-spot to hopefully lower bufferbloat, that way I plan to allocate that speed to my gaming PC, and the rest to my Streaming PC which I hope isn't an awful logical approach, regardless I'm still the only internet user in this house.

Here's my Geo-Filter for the games I play.

The benchmark in the router.

These are my congestion Control settings with sharing excess disabled, I've set it up like this so that I can dedicate everything to finding a good setting to reduce bufferbloat, I've set my download speeds as the highest speeds a speedtest can do which is usually around 490 download and 49 upload, rather than my 500/50.

So my settings are good so far? Upload/Download Share Excess both disabled to make proper use of congestion control, seems like I've gotten some stability so far, I'll play with the slider again and see if it works this time around.

Thanks a lot for the help so far by the way, I'll report back once I'm finished.

I've now been through every single increment of 5% on both download and upload over 2 hours, one actually gave me a good 95'th percentile, the in-built router benchmark shows almost the same results everytime with mild variations but the waveform bufferbloat just doesn't really budge unless I do a benchmark at the right time.

The one good result I had could not be recreated when repeating the test with the same settings and I'm not sure why there's such massive variations in ping.

I've linked my best test result which was at 35mbps/5mbps from the in-built benchmark in attachments.

I've just done a test at maximum speeds with an without QoS enabled as well as goodput disabled, it looks like QoS is not working as intended.

Above is with QoS enabled, below is QoS disabled.

I'll test it with pingplotter instead, but pingplotter doesn't show the same disturbing spikes which I think cause my ingame de-sync, also I still have a modem which is on a list of bad modems, I think it plays a huge role in this case. It's an arris tm3402.