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Does Bluetooth Low Energy app of nRF Connect for Desktop support reconnection to Bonded Peripherals with privacy enabled?

jing

Hello,

I am using PCA10059 (nrf52840 dongle) with nRF Connect for Desktop v3.9.3 - Bluetooth Low Energy app v3.0.0  to test my target that is using random resolvable address.

They are LESC paired and the target doing directed advertising for bonded central to reconnect.

Upon reconnection, instead of encrypting the link, it seems that the central is trying to pair again?

(nRF Connect log)

13:49:09.054
Scan started
13:49:25.054
Connecting to device
13:49:25.084
Connected to device 61:00:E4:B8:1F:92: interval: 20ms, timeout: 4000ms, latency: 0
13:49:25.799
Attribute value read, handle: 0x03, value (0x): 63-57-61-74-63-68-5F-54-61-67
13:49:36.125
Security updated, mode:1, level:4
13:49:36.146
Storing bond info for device 61:00:E4:B8:1F:92
13:49:46.782
Disconnected from device 61:00:E4:B8:1F:92, reason: BLE_HCI_LOCAL_HOST_TERMINATED_CONNECTION
13:50:14.795
Scan started
13:51:03.436
Connecting to device
13:51:03.490
Connected to device 7E:A2:7D:A4:CB:28: interval: 20ms, timeout: 4000ms, latency: 0
13:51:04.149
Attribute value read, handle: 0x03, value (0x): 63-57-61-74-63-68-5F-54-61-67
13:51:13.687
Authentication failed with status BLE_GAP_SEC_STATUS_PAIRING_NOT_SUPP
13:51:13.768
Disconnected from device 7E:A2:7D:A4:CB:28, reason: BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION
thank you
jing
  • +1

    Hello,

    Upon reconnection, instead of encrypting the link, it seems that the central is trying to pair again?

    Yes, this is what I see here as well when I try to reconnect with a privacy enabled peripheral. It's seems as if the app does not recognize the peripheral as a previously bonded device when a private address is used.

    I would recommend you use the nRF connect app on android instead (iOS did not support central address resolution last time I checked).

    Best regards,

    Vidar

  • 0 in reply to Vidar Berg

    Yes, i've been using the android version to test instead.

    Can/Will Nordic be supporting this on the desktop version?  as it's much more convenient to use, especially if need to do OTA-DFU.  

    thank you

    jing 

  • 0 in reply to jing

    Hi Jing,

    I agree that the desktop version is more convenient to use for some tasks, but there are no plans to fix this limitation in the short term, unfortunately.

    Best regards,

    Vidar

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