BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION during connection with mobile

[Roei]

Hi,

I'm using NRF52840 to connect with a mobile device.

During the connection, I have random disconnection with the reason code BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION.

What can be the reason?

Thanks!

[awneil]

That tells you that the phone deliberately terminated the connection - as opposed to the link just dropping.

So you need to look into why the phone (or the app on the phone) decided to terminate the connection.

https://www.argenox.com/library/bluetooth-low-energy/ultimate-guide-to-debugging-bluetooth-smart-ble-products/

[Roei]

Hi awneil, thanks for your response!

In addition - I have 2 more errors:

BLE_HCI_LOCAL_HOST_TERMINATED_CONNECTION  

BLE_HCI_STATUS_CODE_LMP_RESPONSE_TIMEOUT  

Can you please tell me what is the meaning of those?

[awneil]

the names tell you what they mean

[Roei]

Who is that HOST in that case?

[Roei]

Can it be related to Min and Max connection intervals? Or to other BLE parameters? What are the recommended values?

[awneil]

Roei said:

Can it be related to Min and Max connection intervals? Or to other BLE parameters?

Possibly.

See the phone's debug logs - they may help

Roei said:

What are the recommended values

See the documentation for the operating system in question (Android, iOS, etc)

[Roei]

Can you please send me a link for the documentation?