I have a http://www.netduma.com router which has a very crazy market... Gamers. However it uses QOS to give gamers a better connection in busy households and it works well for that. Recently I purchased a SB6141 to replace my old and failing TM822G. After months and months of trying to figure out why sometimes devices in my house followed the QOS rules I set and sometimes they didn't, I narrowed it down to the SB6141. Today I switched back to the TM822G and all my problems went away. Is this a bug with most "Surfboard" modems?
It seems to do the same when I use my Asus RT-N56U and try to use QOS. Sometimes it works, and other times it doesn't. For example, I could upload to YouTube on my wired PC with Chrome and my ping stays low as expected, but if I upload with Firefox my ping spikes and causes lag while gaming. If I do the same test with both routers on the TM822G I can upload and download without any major spikes in my ping while gaming. Which is exactly what is supposed to happen.
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