nrf5340 audio - Wrong encryption key

Hello,

I am running the nrf5340_audio application on NCS v2.6.0 in broadcast mode (CONFIG_TRANSPORT_BIS=y) using 2 nRF5340 Audio DK's. 

On my gateway, I have encryption enabled with

 

CONFIG_BT_AUDIO_BROADCAST_ENCRYPTED=y
CONFIG_BT_AUDIO_BROADCAST_ENCRYPTION_KEY="NRF5340_BIS_DEMO"

On my headset/receiver, how do I know if the encryption key is incorrect? I am able to connect and listen when the encryption key is correct, but is there any indication or flag on the receiver end that the key is incorrect other than no audio coming through? I would like to be able to show a message on the receiver log saying that the key was incorrect in order to notify the listener. 

Thank you!

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