Mobility Express DCA Channel selection problems

[jmprats]

I am using Mobility Express 8.10.112 with Dynamic Channel Assignment but it is not working as expected and I am experiencieng some problems and disconnections from clients.

Three AP's located one above the other on different floors are using the same 2.4 GHz channel. And clients sometimes are connecting  to AP's on differents floors. 

Previously I was using a WLC 5508 with those AP's and they selected 3 different channels

what can I do?

Thanks

[jmprats]

I have needed to select channel pairs and  I have been able to enable 40 MHz globaly

But the AP's remains with 80 MHz channels

I attach images

[jmprats]

No, sorry

It seems ME makes the channel changes very slowly, and the end it changed

[Scott Fella]

It takes a while for RRM to start. Seems like you got it going.

[pieterh]

DCA needs some time to converge. The WLC setup may have been operational for a longer time then the ME setup?

and check if event driver RRM is configured : as It is RRM that uses DCA: 

• Description — Auto DCA should be enabled to allow RRM to select best channels for each radio.