I am trying to configure IEEE 802.15.4 packet sniffing on a NUCLEO-WB55 using STM32CubeMonitor-RF and Wireshark.I flashed the following firmware: Wireless coprocessor (M0+): stm32wb5x_Mac_802_15_4_fw.bin from STM32Cube_FW_WB_V1.24.0 Application (M4): Mac_802_15_4_Sniffer_Nucleo.bin from STM32CubeMonitor-RF IssueThe sniffer is detected successfully as a USB Virtual COM Port, and Wireshark recognizes it as an STM32CubeMonitor-RF 802.15.4 sniffer.However, no packets are captured, even when transmitting IEEE 802.15.4 frames from another STM32WB board.Troubleshooting Performed Tested both USB and ST-LINK/SWD connections. Verified USB device and serial port detection. Verified Python, PySerial, and Wireshark compatibility. Confirmed Wireshark recognizes the sniffer interface through extcap. Tested direct capture using stm32cubeMonRf_sniffer.py. Tested capturing through Wireshark and STM32CubeMonitor-RF. Configured matching IEEE 802.15.4 channels. Verified that the transmitter executes frame transmission commands. No packets appear in any capture method.Environment Hardware: NUCLEO-WB55 Firmware package: STM32Cube_FW_WB_V1.24.0 Sniffer application: STM32CubeMonitor-RF OS: Arch Linux Wireshark: 3.4.8 Python: 3.12 PySerial: 3.5

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STM32WB55 802.15.4 Sniffer Detects USB Interface but Captures No Packets

I am trying to configure IEEE 802.15.4 packet sniffing on a NUCLEO-WB55 using STM32CubeMonitor-RF and Wireshark.

I flashed the following firmware:

Wireless coprocessor (M0+): stm32wb5x_Mac_802_15_4_fw.bin from STM32Cube_FW_WB_V1.24.0
Application (M4): Mac_802_15_4_Sniffer_Nucleo.bin from STM32CubeMonitor-RF

The sniffer is detected successfully as a USB Virtual COM Port, and Wireshark recognizes it as an STM32CubeMonitor-RF 802.15.4 sniffer.

However, no packets are captured, even when transmitting IEEE 802.15.4 frames from another STM32WB board.

No packets appear in any capture method.