Port- 0009.hub- 0003 Jun 2026

When you see this in your Device Manager or system logs, it is mapping the connection path:

Once located, check:

| Context | Meaning | |---------|---------| | | A specific physical USB port ( port-0009 ) on a specific USB hub ( hub-0003 ) as shown in system logs or lsusb -t output on Linux. | | Industrial / Embedded system | A port identifier in a modular I/O system (e.g., Modbus, CAN bus, proprietary fieldbus). | | Network device naming | A switch port or router port naming convention in a large managed network (rare). | | Virtual / Simulation environment | An emulated port and hub ID in QEMU, VMware, or similar virtualization platforms. | | Developer board / FPGA | A specific connector on a custom expansion hub (e.g., Raspberry Pi CM4 IO board). | port- 0009.hub- 0003

. When a device fails, the operating system does not always know the device is, but it always knows it is connected. Error Isolation

, the equivalent information is available through other commands: When you see this in your Device Manager

Right-click the . Select Uninstall device .

The LocationInformation string, like Port_#0003.Hub_#0001 or Port_#0004.Hub_#0003 , is stored in the Windows Registry for each USB device. You can often find it at a path similar to: | | Virtual / Simulation environment | An

The USB port may not be providing enough power, or Windows is shutting down the port to save power.