USB Connection Troubleshooting

If your USB devices or card printer are not being recognised, follow these simple steps to identify and fix common issues.

Method 1 – Power Reset the Computer

Turn off your computer and unplug it from the wall for a few minutes. This allows the motherboard to reset and reload USB drivers.

After waiting, plug the computer back in and restart it. This can often restore USB functionality.

Method 2 – Update Device Drivers

Open Device Manager and look for any "Unknown Device". Right-click it, select Properties, go to the Driver tab, and click Update Driver.

Method 3 – Restart and Reconnect

Disconnect all USB devices, restart your computer, then reconnect the device to a different USB port.

Method 4 – USB Root Hub Settings

In Device Manager, go to USB Root Hub settings and disable power saving by unchecking “Allow the computer to turn off this device to save power”.

Method 5 – Connect Directly

If using a USB hub, try connecting the device directly to your computer. Some hubs may not supply enough power.

Method 6 – Use Windows Troubleshooter

Run the Windows USB Troubleshooter to automatically detect and fix issues.

Method 7 – Update USB Hubs

Update drivers for Generic USB Hub devices in Device Manager.

Method 8 – Reinstall USB Devices

Uninstall USB devices in Device Manager, then restart your computer.

Method 9 – Remove Hidden Devices

Open Device Manager and show hidden devices. Remove any greyed-out or unknown USB devices.

Other possible solutions

• Try a different USB cable
• Test on another computer
• Ensure devices are safely removed before unplugging
• Check BIOS USB settings if needed

If these steps do not resolve the issue, there may be a hardware fault.