PM_EVT_CONN_SEC_FAILED error after reconnecting

[Pavan Kote]

Once paired & Bonding is completed. If neither side pairing & Bonding information is deleted. After restart the device is not advertising again. We are getting PM_EVT_CONN_SEC_FAILED.

How can we overcome this if we get this error.

[Pavan Kote]

Hi,

It means not possible to sync both when neither devices deleted bonding information. Is it correct.

[Einar Thorsrud]

I am not sure what you mean. Can you elaborate?

[Pavan Kote]

Suppose we want to delete the existing bonding.

What is the procedure we have to follow. Who should initiate the Bonding deletion Event.

[Einar Thorsrud]

The user would have to delete the bond on the Windows machine, and the user would have to delete the bond on the nRF. Once both sides have deleted the bond they can pair/bond again.

However, on the nRF side it is possible to allow repairing, if you do not see any relevant security issues with it. If you want to do that, follow the description in this post. It is not possible to do the same on Windows, so if the bond is deleted on the nRF, you will need to delete the bond on the Windows computer regardless of if the nRF allows repairing or not.