Bufferbloat download latency

[Copacabanah]

Hello netduma team, 

Firstly, I wanted to thank yoh for you provided help in my previous post. 

Indeed it was the server once a few weeks later out of the sudden, the servers ran normally again and now slow server was detected on the ping heat map. 

I recently moved, have a Fibre 1000mbs/100mbs connection (fibre not anymore directly until the apartment, just until the house, or area). And can easily also reach this speeds.

But I was not happy anymore with the server performance and the matchmaking of Cod (who is 😅?) so I decided to give my xr500 another try to at least have a good ping, while always sweating 😂. 

Then I fall over a YouTube video for the perfect setup of Dumaos/XR routers and found the game changer. 

Yes I am no tech freak but I had the feeling that some packet bursts I had and weird situations in the game were related to the connection. For me a 1000mbs/100mbs connection does not make sense. I had the feeling the connection is not able to handle this high speeds. 

The person in the video explained and made a bufferbloat test,  I did the same, and my results were kind of a gamble, always different, reaching maximum the grade B in the bufferbloat  test of waveform.com with an download Latency under heavy load of 40ms, and around 4ms upload latency under load. 

So I set up the xr500, installed everything nice as tidy, but still even wits Qos 70/70 same results. 

So I limited the download and upload speed to 250mbs/100mbs in the configurator, and suddenly I had always at least an A in the bufferbloat test at waveform.com. With an average download latency of 14 ms and upload latency of 0 to 2 ms. 

Makes my theory sense? And what could I do to get rid of the 14ms? Would a dns address change to Google on the pc make a difference here or not really? 

Fact is and I learned it again.. Download speed is not everything 😂

Sorry for this huge wall of text, i will try to upload also some Screenshots later related to the results. 

Look forward to hearing back from you soon, 

Cheers, 

copacabanah

[Netduma Fraser]

You're welcome!

You don't really need to limit the speeds in that way, you could just experiment with the Congestion Control percentages more and achieve the same results most likely. 70% is our recommended starting point but doesn't work for everyone. Is the 14ms just your normal average or average under load? DNS wouldn't make a difference.

[Copacabanah]

Thank you for replying so fast, the 14ms is average was under load. 

Ouch, I just realized that I was making the test with the Congestion Control percentage with automatic enabled and not always.. I was wondering why the test was still showing up to 1000mbs download... Thats why adjusted the main download/upload speed at first place...

Amateurs at work 😅 I will run the test then again as soon as possible like you said, while experimenting with the percentage and always enabled to get the right results. 

Afterwards I will provide you then with propper screenshots as well. 

Thank you for your support and have a great rest of your day!