Client / Equipment connection failure

[humanoid-scap]

When trying to connect BK 9205B, we get a 500 server error:

lablink-server | 15:55:20 - WARNING - pyvisa - Found a device whose serial number cannot be read. The partial VISA resource name is: USB0::11975::37376::???::0::INSTR
lablink-server | 15:55:22 - WARNING - zeroconf - unregister_all_services skipped as it does blocking i/o; use AsyncZeroconf with asyncio
lablink-server | 15:55:22 - WARNING - pyvisa - Found a device whose serial number cannot be read. The partial VISA resource name is: USB0::11975::37376::???::0::INSTR
lablink-server | 15:55:24 - WARNING - zeroconf - unregister_all_services skipped as it does blocking i/o; use AsyncZeroconf with asyncio
lablink-server | 15:55:24 - ERROR - server.equipment.bk_power_supply - Failed to connect to USB0::11975::37376::800886011797210043::0::INSTR: No device found.
lablink-server | 15:55:24 - ERROR - server.equipment.manager - Failed to connect to device at USB0::11975::37376::800886011797210043::0::INSTR: No device found.
lablink-server | 15:55:24 - ERROR - api.equipment - Error connecting device: No device found.
lablink-server | INFO: 192.168.88.231:30456 - "POST /api/equipment/connect HTTP/1.1" 500 Internal Server Error