Bufferbloat on BT Home Hub

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17 Mar 2009
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Hey guys, I'm an avid FPS gamer and have suffered from some form of desync that I don't have the knowledge/know how to fix. I randomly came across a Youtube video and from there tested my connection on dslreports and I get a rating of "D" Is there an easier way to bring down my levels of bufferbloat (peaks at 600ms and sits around 400ms) without buying a Modem/Router with more "advanced" options?
 
No you need a router with decent QOS.

This isn't 100% required unless he has other people hammering the connection while he is gaming, I assume you have other people using the service while your gaming?

If not then it could be your playing at peak times and the local area is overloaded with people.
 
As well as the above about having multiple people sharing the connection, it also depends on which BT hub it is and what sort of connection you're getting from BT. ADSL is pants when congested, FTTC I found improved latency even with the old BT hub 3 and a couple of people on YouTube. But I had to replace the BT hub to get low latency all the time, even if the connection is hammered.
 
It's the best one I did and the bufferbloat flickered between C and D rating on multiple tests. I'm thinking of replacing the homehub 5 with something that will allow me to combat the bufferbloat, what to replace it with is another question.

My Ubiquiti EdgeRouter X and Openreach HG612 gives me A on the bufferbloat rating. I just have the basic Smart Queue QOS enabled on the Edgerouter.
 
My Ubiquiti EdgeRouter X and Openreach HG612 gives me A on the bufferbloat rating. I just have the basic Smart Queue QOS enabled on the Edgerouter.

Yeah I'm pretty much clueless when it comes to modems and routers, I've always just used the ISP provided equipment. I know just about enough of the issue and what settings I need to be able to combat this issue, like being able to change AQM algorithms (Codel and fq-Codel and so on) it's just a case to find a modem and router combo or all in one that will allow me to change them.
 
The choices for a decent combo device for BT infinity with QOS is quite limited, probably the Draytek 2860 is the best.

You are better off using a HG612/Draytek 130 + router.
 
I don't think any of the ISPs use QoS on their end of uploads so if something starts hammering uploads you can expect to see bufferbloat increase. Obviously using QoS to impose upload restrictions could improve this but it various from different routers. Would be interested to see a before and after QoS bufferbloat result.
 
At the moment I have Ubiquiti USG + BT Smart Hub working together.

Results:

USG QOS Disabled

- http://www.dslreports.com/speedtest/14961491
- DL (avg) 57ms
- UP (avg) 191ms

USG QOS Enabled
- http://www.dslreports.com/speedtest/14962197
- DL (avg) 21ms
- UP (avg) 19ms

Enabling QOS does limit the max download speed as you can from the results.

I had Draytek 130 but my sync speed dropped from 80 to 74ish so returned it, should have waited longer to see it would get better. Anyway with the Draytek in bridge mode I had QOS disabled on USG and still got A for bufferbloat if I recall correctly that is. Got a cheap vmg8324-b10a to try next, might eventually go back to Draytek depending on how things go.

Hope it helps.
 
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