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Contributor I
September 4, 2016

ASUS RT-AC88U

  • September 4, 2016
  • 62 replies
  • 25964 views
I recently bought a new wifi router/access point an ASUS RT-AC88U

Once I switched over to it I found that I had sporadic access to my Sonos speakers (Play 3, Playbar + Sub).
Sometimes I could connect to the speakers, sometimes I couldn't. When I could connect I'd sometimes be able to see all the rooms and other times only 1.

I played with a bunch of wifi settings and finally tracked down the culprit.
Wireless menu >> Professional Tab >> Airtime Fairness
This setting is enabled by default. When I disabled it my access to my Sonos was restored to it's former fully functioning glory.
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62 replies

Lyricist I
January 9, 2018
Looks different to my RT-AC88U:



Also there is a new fiirmware: 3.0.0.4.384
pls check again.

Hi Everyone,

I just got a new Play:5 Gen II, got home to set it up with my RT-AC88U router and it won't connect. I tried going to Wireless Setting --> Professional to disable airtime fairness however that setting doesn't seem to be accessible. I am running the latest firmware (3.0.0.4.382_18991). Any help on how to disable airtime fairness? Below is a screen shot of what I see when I go into Wireless settings.

. Hopefully you can tell in the screenshot that there are no tabs up top to view professional settings as other instructions say to follow to turn off airtime fairness. I do have several other Sonos components hooked and working fine.
Contributor I
January 13, 2018
OMG OMG OMG!!! this one singe switch! i was pulling my hair out for two straight days... Got Asus RT-AC3100, a different version of RT-AC88U, and could not connect! this single switch change did the job! I have three Play 5 and one Play 1.
Thank you so much!
Lyricist I
February 6, 2018
Wish I had found this thread early on. Been trying to troubleshoot for days and found out the exact same setting is causing the issue.
Lyricist I
February 25, 2018
It’s on their hardware compatability list:

https://sonos.custhelp.com/app/answers/detail/a_id/42/~/sonos-and-incompatible-hardware
I recently bought a new wifi router/access point an ASUS RT-AC88U

Once I switched over to it I found that I had sporadic access to my Sonos speakers (Play 3, Playbar + Sub).
Sometimes I could connect to the speakers, sometimes I couldn't. When I could connect I'd sometimes be able to see all the rooms and other times only 1.

I played with a bunch of wifi settings and finally tracked down the culprit.
Wireless menu >> Professional Tab >> Airtime Fairness
This setting is enabled by default. When I disabled it my access to my Sonos was restored to it's former fully functioning glory.
Lyricist I
February 25, 2018
Me too. Just spent 6 hours factory initialising everything in sight.
Googled just about everything, but because I was having issues with other devices, I didn’t look for Sonos + Asus. Doh.
Well done for solving this.
Lyricist I
March 16, 2018
Damn, you are a savior! Thanks so much, been swearing at those damné speakers for over a year... I bet it'll also help with my Chromecast and my WiFi printer

Great great post
Lyricist I
May 29, 2018
Bgluce - did you ever figure out how to get the
Professional menu to come up? I’ve been wrestling with this for thre whole of today and cannot turn airtime fairness off because i can’t get to the menu. Can anyone tell me the address ? Can I just type it in ?
Lyricist I
November 26, 2018
Thank you thank you thank you this fixed my problem instantly!!!
Lyricist I
December 4, 2018
make sure that you set it for both your bands (2.4 and 5ghz) ! thanks!!! Didn't see the dropdown to se the 2.4GHz one as well. Drove me CRAZY, works like a charm now.
Lyricist I
January 19, 2019
I have created a forum account just to testify that I had similar issues with my sonos after upgrading from ac68u to ac88u. After disabling the airtime fairness, problem solved!