nRF Sniffer not capturing packets after connection

Question

I'm new to nRF Sniffer. Just installed it and the installation seemed to go as expected. I see my device in the device list when it is advertising. After I select the device I can still see advertisement packets. However, when the peripheral is connected to, then I no longer see any packets. There is communication going on though. Is there something that must be done to see the packets after the connection is made? 
 I'm using: 
 * nRF Sniffer 4.1.1 
 * nRF52840 Dongle (nRF6929 V 1.0.0 2018.22) 
 * M1 MacBook Pro Ventura 13.2.1 
 * Wireshark 4.0.3

denis · Accepted Answer

Correct, I can see advertising packets after filtering. But when I connect I just see a single CONNECT_IND in wire shark and that's it. 
 I believe I followed everything in the nRF sniffers documentation. 
 This is the /tmp/logs/log.txt output: 
 01-Mar-2023 17:04:43 (-0600) INFO: Software version: 4.1.1 
 01-Mar-2023 17:04:43 (-0600) INFO: sniffer started 
 01-Mar-2023 17:04:43 (-0600) INFO: starting scan 
 01-Mar-2023 17:04:43 (-0600) INFO: Scan flags: 0b11 
 01-Mar-2023 17:04:43 (-0600) INFO: Sent TK to sniffer: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] 
 01-Mar-2023 17:04:43 (-0600) INFO: scanning started 
 01-Mar-2023 17:04:43 (-0600) INFO: defaults written 
 01-Mar-2023 17:04:43 (-0600) INFO: control loop 
 01-Mar-2023 17:04:43 (-0600) INFO: Firmware version 4.1.1 
 01-Mar-2023 17:04:43 (-0600) INFO: Firmware timestamp 35287739 reference: Mar 01 2023 17:04:43.619431 CST 
 01-Mar-2023 17:09:55 (-0600) INFO: Clearing 
 01-Mar-2023 17:11:32 (-0600) INFO: follow_device: [b'225', b' 187', b' 34', b' 69', b' 21', b' 200', b' 1'] 
 01-Mar-2023 17:11:32 (-0600) INFO: Sniffing device 14 - """" 
 01-Mar-2023 17:11:32 (-0600) INFO: Follow flags: 0b0 
 01-Mar-2023 17:11:33 (-0600) INFO: Following e1:bb:22:45:15:c8 random

denis · Answer

It started working. Not totally sure why. But I did install ChmodBPF. From what it said, I assumed that was only needed to capture packets in the OS. But maybe that is needed for the BLE sniffer also?

nRF Sniffer not capturing packets after connection

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