Unable to start capture on nRF sniffer

[chound]

I bought a nRF52840 DK, and followed the UG for nRF BLE sniffer v4.0.0. I was able to see the sniffer interface in Wireshark on my Linux machine, but when I start capture on the sniffer interface, I immediately got an error saying that NRF sniffer for BLE could not find interface: /dev/ttyACM0.

I also tried on MAC OS and got the same error, except that the interface name is different. 

I have managed to trace down the error to nrf_sniffer_ble.py that produces error_interface_not_found in get_default_baudrate. However I do see the interface when I list the USB devices.

Am I missing anything? Any help would be appreciated. 

[Jeff4BLE]

Hi Chound,

I assume the DK is version 3? If so, Nordic is aware of compatibility issues with Wireshark. However, I know with a windows system the nRF USB port on the nRF52840-DK does work with the current sniffer firmware and Wireshark. Hopefully, that will work on Linux system too.

The nRF USB port is on the long side of the DK near the push buttons.

Cheers,

Jeff

[chound]

Thanks for the input Jeff. The sticker on the board says PCA10056 3.0.0, so it seems to be the version with issues.

I tried switching to the nRF USB port, but the board is not detected. This happened on all Linux, MacOS, and Windows. 

Is there a known Wireshark version that works with this DK version?

[Jeff4BLE]

On Windows 10 Enterprise, I am able to run the Wireshark Version 3.6.7 connect to the nRF USB port of a PCA10056 3.0.0 programmed with nRF sniffer for Bluetooth LE firmware version 4.1.0 successfully. Are you using the same Sniffer firmware? 

Cheers