Check that the keyboard is properly plugged into the USB port on your computer.Try replacing the USB port with a different one, including other USB ports on the motherboard, USB docking station, etc. to rule out whether it is a faulty interface or the keyboard itself.
The system is newer (e.g. Win10, etc.) and the keyboard driver does not support the system, you may need to update the driver.Sometimes the keyboard driver related registry files in the system registry are missing or corrupted, which may lead to incompatibility.You can try to perform registry operations, such as re-registering the keyboard driver
- Operating System Problems
The keyboard is not compatible with the operating system.For example, some newer keyboards may not support older versions of the operating system (e.g. Win7, etc.) and require systems such as Win8 or Win10.In this case, a system reinstallation may be required.
System setup issues.For example, there may be conflicting or incorrect settings for the keyboard driver in the system's device manager.You can try to update or reset the keyboard driver in the device manager.
The keyboard itself is faulty.For example, the keyboard plug is damaged, the internal circuitry of the keyboard is faulty and so on.In this case, it is recommended to contact after-sales service for a new keyboard.
The USB interface of the computer motherboard is faulty.It may be that the interface is damaged, poor contact, etc.You can try to use other interface devices to test whether the motherboard USB interface is normal.