Check whether the radio-controlled socket can be switched using the button on the housing. If this is not possible, the radio-controlled socket is defective.
Check the battery of the hand-held transmitter to see if it is still full.
Are you possibly too far away?
You can try resetting the radio-controlled sockets. To do this, press and hold the switch (6 seconds)
Check the wall socket to see if it is still OK.
If two radio-controlled sockets are too close together.
Overloading can cause the radio-controlled socket to break. Therefore, please pay attention to the maximum load capacity of the socket.