AX88U 2.4Ghz Max PHY Rate

Helder Santos

Regular Contributor
Hello,

What is the correct Max PHY Rate speed I should be reaching in 2.4Hgz??
Right now I see 385Mbps. I thought the max was 1148Mbps

Here's my config

Thanks
1668091947715.png
1668091971708.png
1668091995583.png
 

L&LD

Part of the Furniture
The theoretical maximum depends on the client device (handheld/battery-powered vs. AC wall-powered computer on 'best performance settings'). It also depends on the distance tested. What is used for the testing, and is still only the connection speed, not the actual throughput possible to be achieved.

Disabling WiFi 6/AX mode and using 40MHz wide channels is also lowering the throughput. As (possibly) is leaving the Control Channel to Auto.

So, what are you using to test with? What is the indicated connection rate? How are you testing? What kind of environment are you in (with regard to WiFi)?
 

ColinTaylor

Part of the Furniture
Right now I see 385Mbps. I thought the max was 1148Mbps
That's the most you will get because you have disabled ax mode and set the bandwidth to 20MHz. To get 1148Mbps you need to use ax mode, have a bandwidth of 40MHz and use an ax client with four antennas.
 

Helder Santos

Regular Contributor
I'm using the Site Survey within Merlin.
And this is what I see
1668094013455.png


So should I turn on WiFi 6/AX mode?
 

ColinTaylor

Part of the Furniture
I'm using the Site Survey within Merlin.
And this is what I see
View attachment 45351

So should I turn on WiFi 6/AX mode?
That's just telling you the maximum rate it's capable of. Whether you have any clients that can use it (1024QAM) is another matter.

Better 40mhz or 20/40Mhz?
That depends entirely on your local situation. Nobody have can tell you which is "better", you'll have to test it for yourself. That said, I would start with 20/40 and see how that goes.
 
Last edited:

Tech9

Part of the Furniture
In reality with AX mode disabled on 2.4GHz - 72Mbps link speed (~50Mbps throughput) to 1-stream N client and 144Mbps link speed (~90Mbps throughput) to 2-stream N client @20MHz wide channel. 20/40 setting almost guaranteed fails back to 20MHz over time, unless the house is in the middle of a corn field. Forced 40MHz wide channel is not recommended - it takes almost the entire 2.4GHz spectrum and often in (normal) interference conditions works worse than 20MHz wide channel.
 

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