First check whether the keyboard is short of power, if not enough power will affect the voltage and the normal use of the keyboard.
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If you are sure that the power is still not used, you need to check that the keyboard is properly connected to the computer.
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You can press the NumLock key on the keyboard to see if the light on the keyboard is not bright, if it is not bright, it means that there is a problem with the connection between the keyboard and the computer, under normal circumstances, there is a problem with the keyboard driver, you can move the mouse to \"my computer\
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Maybe the computer is stuck, you can restart the computer to see if it is back to normal.
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Or uninstall the wireless keyboard, and then reconnect the computer, in general, it will return to normal
The possible causes are as follows: 1. Power failure: Check whether the battery is powered on, and try to replace the battery or charge the cable.
2. The keyboard fails to connect to the computer: Open the device Manager, check if there is a yellow exclamation mark or question mark, if there is, right-click and select \"Update Driver\".
3. Delay caused by WiFi connection: Try to change the connection mode (wired or Bluetooth) or adjust the WiFi signal strength.
If there is no response after trying the above methods, it is recommended to contact the keyboard manufacturer or maintenance personnel to repair or replace.
Here are some possible solutions:
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1. Make sure your keyboard has wireless connectivity enabled (usually by pressing a key or button, refer to your keyboard manual for details).
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2. Make sure your computer's wireless card is connected to the correct WiFi network.
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3. Try restarting your keyboard and computer.
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4. Check whether your keyboard requires a driver to be installed (if so, download and install the driver).
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5. Check that your keyboard has a battery and that it is fully charged.
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6. Try to move closer to your keyboard and computer.
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If the above solution does not solve the problem, try contacting the keyboard manufacturer for help.