his network is operating on wifi channels in use by several other near

[manvik]

I am getting an error while connecting mobile devices to SSID. Setup is Cisco 5520 WLC with AP 1850 series.

Unable to join to the network. This network is operating on wifi channels in use by several other nearby networks. Restarting your wireless network may allow to automatically choose the best channel to use, and may resolve the problem.

[marce1000]

   - Is this related to a specific brand of mobile devices , or can it be seen with different models (too) ?

 M.

[manvik]

mostly Apple Mobiles

[marce1000]

        - Probably an IOS bug or problem in combination with cisco wireless, use latest IOS on the Apples.

 M.

[Leo Laohoo]

I have never seen an error message like that on an Apple device.  Please share the screenshot.  

[manvik]

screenshot. It's shown when connecting to an SSID after entering it's password.

[Leo Laohoo]

That is customized error message. 

What happens if the SSID is configured with OPEN authentication?

[manvik]

i havent tested open authentication. It should work I feel base don previous experiences.

Currently using WPA2 password and MAC filtering.

[Flavio Miranda]

Hi

 This is for 2.4 or 5.0? Are you allowing all possble channel? Or are you manually restricting channels?

 W

Either way, this feature does not make sense.wifi is about sharing channels. How many device does this feature will consider as accepted.  

[manvik]

it's for 5

WLAN layer 2 security config.

I have enabled DCA too as below;

[Dalton Butler]

Were you able to resolve this issue?  I am having the same issue now in our environment. 

[manvik]

It's with encryption settings. We created a separate SSID with different encryption settings. Device got connected to that.