R6700v2 Buffer bloat How can we fix this ? Can we get SQM or QOS that works like it ?

Question

I get a lot of buffering problems sometimes with this router as it builds up buffering bloat . I tested it on www.waveform.com and got this result --- > https://www.waveform.com/tools/bufferbloat?test-id=dbe7a7ce-11c6-4859-acdd-3b91f20bf0f6

The buffering added 67ms to download and 47ms to upload and base start ms pin was 42ms . I've seen the buffering lots worse as tested on http://www.dslreports.com/speedtest with added buffer going as high as 200 to 300ms and got an F for bufferbloat .

Your QOS is way outdated and has AOL and other programs that are over 10 years old in it . I wanted to maybe try another firmware that has SQM in it like Tomato,DDWRT or OpenWrt to fix the buffer problem but the chipset in this model doesn't work well with them. I read OpenWrt might have firmware for this model but it's not easy to install .

Any way to fix settings in the OLD QOS setup of this router to help with bufferbloat ?

plemans · Answer

What speeds do you pay for?&nbsp;
What modem/gateway do you have it connected to?&nbsp;
&nbsp;
have you tested your buffer bload directly connected to the modem/gateway?

Timo222 · Answer

I pay for 100mb down and 10mb up and i get more than that but the buffering gets really bad . The modem is what Spectrum gave me and is a Hitron e31t2v1 Docsis 3.1 . I tried connecting my line directly to the modem but i get no connection and windows 10 wouldn't fix it . I think spectrum made it so i have to go through my router or i just have to restart that modem and have my line connected to it instead of the netgear router. Spectrum Advanced Voice Modem User Guide - Manuals+

I turned QOS off in the router and now getting a little better connection but also i added in cloudfare's free dns in settings of the router 1.1.1.1 and that helped the ms ping buffering some but still over 100ms ping down added together with local and streaming buffer .

Netgear Firmware just isn't good enough to get rid of buffering problems at least not in this model. It doesn't have enough options . I can change upload to buffer a little in settings of QOS but there are no settings for download buffering to tweak for this router .

plemans · Answer

disconnect everything from the modem and reboot it.&nbsp;
Then connect a pc.&nbsp;
Try it that way

Timo222 · Answer

I connected the computer directly to the modem and the buffering was the same . The Router is supposed to fix the buffering problem IF QOS worked correctly. QOS on this model only has the option to throttle Upload which i was locking at 10mb up and the speed tests at 12 to 14mb up .There is no option at all for download buffering which is where most of the problem is anyway. I get around 50 to 80 ms extra ping with the download and even more with longer distances . Lots of people changing over to ddwrt ,tomato and openwrt on routers IF they can upgrade the Firmware easily .With the chipset on this it can not be easily changed to Openwrt which they have a replacement for this router's Firmware . If you look at this page you can see that SQM for OpenWrt has more options than the pretty much half thought out QOS that my Netgear router has .&nbsp;[OpenWrt Wiki] SQM (Smart Queue Management)If Netgear could just add in that option for throttling download speed as well like they have on other models,I think the buffering could be managed . Here's my latest test&nbsp; which shows the download has the worst buffering which went up to over 200ms .Ping stats --Min:&nbsp;49&nbsp;msMedian:&nbsp;125.5&nbsp;msMax:&nbsp;209.1&nbsp;msMean:&nbsp;126.6&nbsp;ms&nbsp;https://www.waveform.com/tools/bufferbloat?test-id=a2455445-641e-46f0-b395-99de4836d778&nbsp;&nbsp;

plemans · Answer

If the buffer bloat is originating from your modem/gateway, how do you expect the router to fix it?
that's where the bottleneck is and the router can't "fix" your gateway's buffer bloat issue.&nbsp;
That's why we usually have people check the modem first.&nbsp;
&nbsp;
think of it like a water supply. If the city only supplies you with a 1/2 inch diameter incoming connection, it doesn't matter if you're attach a 4 inch diameter hose to it. its still limited by the incoming supply.&nbsp;
Same with your network. If the modem/connection is causing the buffer bloat, the rest of the network is going to be impacted by it.&nbsp;

Forum Discussion

R6700v2 Buffer bloat How can we fix this ? Can we get SQM or QOS that works like it ?

5 Replies