Hello,
I tested the A6 and A6 Pro and noticed that my WiFi download speed is never higher than 500Mbit @ 80 MHz, even when being in the same room, 50cm away with a line of sight. My internet connection is 1Gbit/500Mbit fiber.
With another Mediatek-based WiFi AX AP connected to the same switch I’m getting around 750 - 800 Mbit.
I tested the speed with an AX210 and already tried different channels and disabling DPI.
What else can I do to improve the download speed?
Hi bsdmonster. I see this happening to a lot of folks. The radios on these APS are very strong. Being really close to the AP with the power set to “Auto” will absolutely overload everything with signal. As an example, in my house right now I am upstairs sitting above my AP6 pro, and I can still get speed tests in the 400 to 500mbps range! I would suggest being at least on the other side of the room. You should also channel scan and make sure you are on good clean channels when you are testing.
Hi @bsdmonster 
I also had that problem while I was using public speed tests like the one from Netflix or Speedtest.net. I currently use a self-hosted version of OpenSpeedTest and my speed is much more accurate than before (because with public applications, there are a lot of variables that affect the result).
Also, be sure to use a Wi-Fi 6 compatible device to get the maximum speed possible. It may also depend of the Wi-Fi interface on your device (2x2 vs 3x3 if you use a cellphone vs laptop).
Otherwise, you can probably use iperf to have a better idea of your maximum Wi-Fi speed. I would definitely do this before doing a public speed test (because it less accurate and they also take your data for free)
I second this. I’ve tried a lot of other access points, and these take the cake on signal strength.
All of the above is excellent advice/feedback. This community is awesome! 
One thing to note is that if you’re wanting the full gigabit (real world ~990mbps), you’ll need to use a 160MHz wide channel if that’s an option in your RF environment.
Correct, i tried some different speedtest servers and got much better results. I also moved the AP6 Pro closer to my devices (same room now) and I’m getting the full 1Gbit via 160MHz.
I’m not well versed in the wireless side of networking. Would setting the channel width to 160MHz mean devices that support 5Ghz but are older would not be able to connect?
As a general rule, no. If a device doesn’t support the channel width, they should still be able to connect at a lower channel width. Many of the larger channel widths are bonded, i.e. 80MHz is simply 2 consecutive 40MHz channels that are bonded together, so the device would simply connect to one of the 40MHz channels. Note that this is the rule, and there are exceptions to every rule so it can’t be said with 100% certainty, but given that it’s simply a setting, you can always change it back and figure out a plan from there.
Thanks for breaking it down! I was under the impression if I changed the channel width to 160MHz, anything that wasn’t 160MHz compatible simply wouldn’t connect.
Another point worth mentioning is that the wider the channels used in your cell, the more susceptible it becomes to ACI (Adjacent Channel Interference), which can adversely affect device performance depending on the RF environment.
There is definitely a balance to be found, and it will vary based on specific RF conditions. In some cases, you may find that 80MHz offers better performance than 160MHz+, even though the opposite might be expected.
EDIT: removed VHT, replaced with MHz, as it could also be HE, or EHT, depending on the product