Apple Watch Fix for RT-AX86u

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New Around Here
I have a lot of apple products that connect to my new Asus RT-AX86U and found an issue with my apple watch connecting.
For some reason on the 2.4 Ghz band My Apple watch wouldn't connect.
I found the issue in one setting on the 2.4 Ghz band under the Professional tab.
Disabled "Enable WMM No-Acknowledgement"
And that fixed the issue now my Apple Watch 6 can now connect on the 2.4 Ghz band.
Odd thing it has no issue on the 5 Ghz Band with this same setting on.
I suspect that Apple has more updated firmware for the 5 Ghz band.

Hope this helped anyone experiencing this issue.

This is for all Asus RT-AX86U firmware versions from Asus and ASUSWRT-MERLIN.
Last edited:


Very Senior Member
Default setting for Enable WMM No-Acknowledgement on stock firmware is disabled so not sure how it was enabled.


New Around Here
I enabled it I typically flip all features on and only turn them off if there is a compatibility issue.


Part of the Furniture
Don’t do that. Some features slow down communication rates, increase latency or limit compatibility.


Part of the Furniture
The only apple product I have issues with is a very old iPod. That does not like WPA2/WPA3 so I set up a guest WIFI with just WPA2 and it is fine.
Otherwise use:
Dual Band SmartCOnnect
2.4 GHz at 20 MHz on fixed channel
5 GHz at 160 MHz on channel 36
SSID and passphrase alpha numeric only!
Leave the rest of the settings at default.
If you are not on Asus firmware version you need to upgrade. Now has DoT and DNS Filter.


Part of the Furniture
5 GHz at 160 MHz on channel 36

Why you always recommend using 160MHz wide channel, @bbunge? What is it good for with your 100/100 ISP, for example?

For best compatibility and stability I would set:
SmartConnect disabled
2.4GHz @20MHz fixed (best throughput channel)
5GHz @80MHz fixed (non DFS channels only)

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