nRF52-DK stops following a BLE connection after a small amount of time passes.

[tjhasan]

I am currently using a nRF52-DK to follow the connection between two external devices. I run the sniffer and start/stop the sniffing via Wireshark.

When I start sniffing, I can see the advertisement packets of the two devices. Then, I select to follow one of the devices. Once that device is followed, I connect the two external devices together. For a small amount of time, Empty PDU and Encrypted packets are shown in the window, but after a small amount of time (roughly around 3 to 5 seconds), the sniffer stops printing packets or packet data.

I'm assuming this is because of the hopping mechanism of BLE devices, but I was under the assumption that the nRF52-DK had the ability to follow a connection through the hopping sequence.

Any help would be appreciated.

[daviddedwin]

Please post:
1. Sniffer version used
2. DK version used
3. The wireshark capture file that you got after sniffing
4. Any other actions done on the devices to setup the connection.

Thanks

[tjhasan]

nRF_Capture-Post-Pairing.pcapngnRF_Capture-Pairing.pcapng

1. Sniffer Version: 3.1.0
2. DK Version: Not entirely sure but I believe there is only 1 version available for the nRF52-DK: 1.10
3. Wireshark captures: I've attached two of my Wireshark captures. The "Pairing" .pcapng file shows the packets sniffed during the pairing process in which I supplied a Passkey as described in this document (Section 5).
4. My method of capture is as follows:
   1. Ensure that the two devices are not paired.
   2. Start Wireshark & nRF52-DK Sniffer
   3. Select the device I want to follow via the toolbar.
   4. Begin the pairing process between my 2 devices.
   5. When given the passkey, type it into the "Passkey / OOB" text box and hit enter.
   6. Enter the passkey onto my actual device to finish the pairing process.

Before I began sniffing, of course, I used nRF Connect to write the appropriate HEX file to my nRF52-DK (in this case it was the sniffer_nrf52dk_nrf52832_7cc811f.hex file located in the provided sniffer files.

Please let me know if you need anything else. Thank you very much in advance!