Haiku L fan won't connect

[Mitsch]

I have a couple of Haiku L fans and I recently upgraded to the Orbi RBR50. The fan/lights immediately disconnected. 

I tried resetting the fans and no joy. Turned off 5ghz, beamforming and MU-MIMO. On advice from Haiku avoided using channels 10 and 1. I also turned off Enable 20/40 MHz Coexistence.

Success!!

I turned it all back on again and it stopped again.

I eventually tracked down Enable 20/40 MHz Coexistence as the culprit. I've been able to use all other settings without issue as long as I leave Enable 20/40 MHz Coexistence unchecked.

I've posted this for two reasons, firstly I didn't find anything pointing to Enable 20/40 MHz Coexistence as the issue with Haiku fans so I wanted it on record. Secondly, I'm an amature when it comes to routing but is there a setting where I can force the router to 20mhz or 40mhz for just two devices (fans - whichever works) while leaving co-existance on for all other purposes? 

[FURRYe38]

Sounds like this fan device only has problems with 20/40Mhz channel with auto setting. Someting to contact the MFr of this device about. If other devices on your Orbi don't have a problem and only this one device does, I would inform the mfr of this device. 

[CrimpOn]

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@Mitsch wrote:

 is there a setting where I can force the router to 20mhz or 40mhz for just two devices (fans - whichever works) while leaving co-existance on for all other purposes? 

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The setting is either "on" or "off".  It cannot be "on" for some devices and "off" for other devices.

Sorry.