nRF Sniffer on MAC cannot see Interface

[Cecylia]

Hi there,

I'm using MacOS Catalina 10.15.6 and nRF52840-DK (2019.9) for the Sniffer.  My PCB is running BLE on nRF52840.  
The hex file used for the sniffer is sniffer_nrf52840dk_nrf52840_7cc811f.hex (from nrf_sniffer_for_bluetooth_le_3.1.0_7cc811f ).

I've downgraded to Wireshark 3.0.7 per some comments from here and here.

When following the instruction from the InfoCenter I got stuck on Step 4, ie I didn't see the Interface.  So,  I did few other things like setting 'alias python=python3' per this comment.  And, ran "/usr/bin/python3 -m pip install --user pyserial"  per info from here.  

And I could finally see the nRF Sniffer Interface

But when I double click on it (while putting the nRF52840-DK sniffer right next to my PCB containing nRF52840 that's actively streaming), I don't see any packets.  And, when I click Stop, it gives some error about "Interrupted system call", and then the Wireshark stops responding.

My questions are:
1) Is it possible that I need to change some Wireshark settings to be able to sniff the BLE packets?  I'm very sure my PCB is streaming packets because my PC Client sees them.
2) Is it expected that you cannot stop the streaming?  Or, am I doing some wrong setup somewhere perhaps?

Thanks,
Cecylia

[Simonr]

Hi

I've been told that the nRFSniffer works as intended on a Mac running the Catalina OS, so there shouldn't be a problem with the nRFSniffer and Catalina OS.

Have you tried removing the nRFSniffer entirely from the computer and reinstalling it, as something might have gone wrong during the install the first time around.  According to my colleagues the latest versions of Wireshark should work as well (Wireshark v3.4.4 for example).

Best regards,

Simon