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I have never had a positive encounter with QoS, and always keep it off. Not sure about everyone else.
– Arctiic
Commented Mar 11, 2022 at 20:50
1

FWIW my local cable-based internet provider is known to alter (some say leak) QoS "tagging" to a flag which many routers will throttle aggressively. I think it is the DSCP CS1 flag (?)
– Yorik
Commented Mar 11, 2022 at 21:30
1

@Arctiic When configured correctly, QoS works wonderfully - simply look at Killer's OpenWrt stock firmware on the Linksys WRT32X. QoS only comes into play if you have multiple devices accessing LAN or WAN at the same time with high throughput/saturating traffic - for example, with a Logitech smartphone puck remote (just the puck or along with the high end remote), you'll experience lag in commands without QoS if the LAN has a few devices accessing LAN or WAN at the same time pulling high throughput. You may also notice throughput lag when SSHing into the LAN remotely without QoS for SSH.
– JW0914
Commented Mar 12, 2022 at 0:29
1

@JW0914 I was referring to the OEM QoS that come with most routers, which if I'm not mistaken, usually won't even come with any options to configure other than an on/off toggle (from the frontend, at least). I have 20+ devices on our network and pay for a 200MBPS plan (cable), but I do find there are still times I experience lag now and then, though I was hoping 802.11ax's MU-MIMO would alleviate that. I've never used a Linksys router before though, I don't know why I always end up buying Netgear routers, recently the Nighthawks.
– Arctiic
Commented Mar 12, 2022 at 2:31

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