BLE_HCI_CONN_TERMINATED_DUE_TO_MIC_FAILURE

[Vikram]

I am using NRF51822 Rev3 and softdevice 7 in my project. On communication with Android device sometimes the link disconnects with disconnection reason61(0x3D)

• BLE_HCI_CONN_TERMINATED_DUE_TO_MIC_FAILURE. Can you please explain When this error occurs?

[Sigurd]

Hi,

BLE_HCI_CONN_TERMINATED_DUE_TO_MIC_FAILURE occurs when in an encrypted link there is a packet with correct CRC but wrong MIC. This should only happen when the key used for encryption is wrong.

Does this happen when you are in a active connection, or when you try connect?

What SDK version are you using?