Iphone 5S does not associate with 5 Ghz frequency

[thomas_untoja]

Dear Everyone,

has anyone met issues when using Iphone 5S with Ruckus 7363 access point, when broadcasting the 2.4GHz frequency and the 5 GHz frequency?
 (firmware version 9.7.1.0.17) 
The issue : when the Iphone tries to associate with the access point, it keeps failing, and thus does not even try to associate using the 2.4 GHz frequency.

[munish_munish]

Hi Thomas,

What is the OS on iphone? Is it 8.3 ? Could you provide  me the support info file from the AP?

Thanks 
Muinsh . 

[thomas_untoja]

Hello, 
I can provide the support info file from the AP
I will call the customer back to learn about the OS currently running on the Iphone.

Thanks.

[thomas_untoja]

IOS version is 8.3.1
Where shall I send the support info file to ?

[munish_munish]

Thomas, is it an open SSID ? Can you check if you can  configure a PSK and test it . I have recently seen issue with 8.3 IOS.