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Windows 10 1803 > 1809 > 1903 Buffer-bloat/Latency Issues

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Hi Guys,

Anyone experience any latency and buffer-bloating issues going from 1803 to any of the new versions of Windows 10 1809 - 1903? On 1803, playing Blade and Soul, when a boss fight start my ping would jump by a mere 10 ms at most and settle down within a few seconds, but since switching to 1809 and then 1903, to test both of them, the spikes became exponential. Anything from 60-150 ms more and very irregular spikes and massive lag causing major DPS loss for me.

Initially I upgraded from 1803 to 1809 when it became available and immediately noticed the buffer-bloat issue, rolled back to 1803 and everything was fine. Some time later I upgraded again, thinking it might have been an launch problem, but yet again buffer-bloat issues. Waiting for 1903 hoping this would be resolved and to my disappointment it has not. Sticking to 1903 for now as I like the look and features I have been going around trying everything I could to resolve the buffer-bloat issues. Removing Spectre and meltdown fixes and adding them back, driver updates and downgrades, removing windows updates, registry tweaks, console tweaks, disable and enable firewall, IPv6 usually disabled, network card preference changes and resets and even changing router settings to see if I can resolve this. I have almost only found 1 mention about a similar issue on the Microsoft support forums but the guy picked up issues when doing data copy tests and has gone unresolved. Yes there are hundreds of other complaints of people having slow internet issues but that is not my current issue. Internet speed is at max with 1 ms latency using speedtest.net and 1 ms max buffer-bloat using dslreports.com speed test.

Current internet and LAN setup is as following:
ISP: Webafrica 50/50 Premium Uncapped
Fiber: Vumatel
Router: Ubiquity EdgeRouter X v1.10.7 using Smart Queue (Up 50 Mbps / Down 50 Mbps)
LAN: All Gigabit Ethernet cabled
PC specs: See signature

Nothing has changed here for very long and this was always the setup without any issues. All latency/buffer-bloat issues started after Windows 10 1809 became available and persisted in 1903. I have tested with the router Smart Queue enabled and disabled too. Minor latency increase with it disabled but in general the issue persists.

So I'm out of ideas now. Just putting this out there if there are anyone that came across a similar issue in any other games and might have found some sort of solution or something to try.
 
Last edited:
1903 was fine for me. It actually helped cure my buggy install and my system is faster now. It used to take 5 mins to shutdown on a regular drive, now it's almost instantaneous.
 

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