The WLC will issue multiple RTS message to the target client. The RTS storm can prevent that particular client from connecting and even busy out the Access point. Put sniffer out and see what you are being sent over the air.
Cisco's position is that the storm occurred because the device on the wired side continued to try to send traffic. If concurrent wired/wireless sniffer trace shows that there was no attempt to send traffic from the wired to wireless side & the AP was doing this on its own, yes.
Development has looked at the sniffer trace for your original concern where there was what appeared to be an RTS storm after your device stopped responding. The conclusion was the controller/AP will continue to try to forward the wired side traffic to the client - for each new packet from the wired side there would be 8 data packet attempts followed by 56 rts attempts.
Transferring Crash file from standby: Login to the Active WLC in HA.
From CLI: (Cisco Controller) >transfer upload datatype crash (Cisco
Controller) >transfer upload filename (Cisco
Controller) >transfer upload mode tftp (Cisco Controller) >transfer
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