Hi SumaN,
I had a very similar issue with a cluster of IAP-103. I opened a case with Aruba and we solve the issue with a firware upgrade to the latest code (when i had the problem, the IAP had the AOS 6.4.2.3 -4.1.1.2).
Also, in the AP Radio-Profile I had enabled the "spectrum-monitor"; we changed this to "access mode".
I hope this will helpful for you.
Massimo
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