WEMO and Ryobi issues post 380.65_4

[Todd McMullen]

I have a RT-AC88U that I have been updating with Merlin for some time now. I have seen some issues with all of my WEMO devices and Ryobi Garage Door Openers in any firmware past 380.65_4. I am not sure what changed, but any time I update the firmware now, I lose all connectivity to my 5 WEMO devices, and 2 garage door openers. I have reset the router to factory defaults, and reset it to make sure, but they are rendered useless after the upgrade. I can't connect to the router from those devices with anything later that 380.65_4, but when I flash back the router to 380.65_4, they start working again and connect to the router without issue.

Any ideas on why that is, or what I can to do try to restore connectivity for those devices in the latest firmware? I did a search for both but didn't come up with anything relevant to these devices. I would be happy to try whatever I can.

 

[RMerlin]

Did you disable Airtime Fairness and MU-MIMO?

 

[Todd McMullen]

Did you disable Airtime Fairness and MU-MIMO?

I did the first time I tried it with no joy. I tried it again, flashed, restored to defaults, and then disable Airtime Fairness and they are both working. I am not sure why they didn't connect the first time with the exact same steps. I didn't disable MU-MIMO. Thanks for the tip and the fix (feeling dumb here lol)...

If I may ask (and I will peruse the forums as well), what is Airtime fairness, and why does it need to be disabled in some cases? I did see it referenced in the Changelog, but it mentioned wifi stability. Wifi was stable, it just wouldn't allow two platforms to connect to the router.

 

[RMerlin]

What is airtime fairness?

Either Broadcom's implementation is broken, Asus misconfigured it, or many clients are not compatible with it - no idea. This was a recent addition by Asus.

 

[Todd McMullen]

What is airtime fairness?

Either Broadcom's implementation is broken, Asus misconfigured it, or many clients are not compatible with it - no idea. This was a recent addition by Asus.

Thanks for the link and reply!