It may be that the extender itself is faulty, or the power plug is in poor contact. First check that the power socket is powered on properly, and then check that the plug and socket of the extender are in close contact. If the above steps are normal, then there may be a fault inside the extender, and you need to contact after-sales service for repair or replacement. In addition, you can also try to replace other power sockets for testing to determine whether it is a problem with the power socket. If the above methods are ineffective, it is recommended to contact the manufacturer or after-sales service for further help and solution.
Restore factory Settings once, or it could be broken.