Troubleshooting   
8.2 Restoring the factory settings 
  SCALANCE WxM766 
68  Operating Instructions, 03/2022, C79000-G8976-C617-03 
8.2  Restoring the factory settings 
 
If you reset, all the settings you have made will be overwritten by factory defaults. 
 
NOTICE 
An inadvertent reset can cause disturbances and failures in a configured network with 
further consequences. 
With the reset button 
When pressing the button, make sure you adhere to the instructions in the section 
"Reset button (Page 33)". 
To reset the device to the factory defaults during the startup phase, follow the steps 
below: 
1.  Turn off the power to the device. 
2.  Loosen the screws of the cover. 
3.  Remove the cover. 
4.  Press the reset button and reconnect the device to the power supply while holding 
down the button. 
5.  Hold down the button until the red error LED "F" stops flashing after approximately 10 
seconds and is permanently lit. 
6.  Release the button and wait until the fault LED "F" goes off. 
The device starts automatically with the factory settings. 
7.  Close the cover (tightening torque 0.8 Nm), to ensure that the device is closed and 
water and dust proof. 
With SINEC PNI 
Follow the steps below to reset the device parameters to the factory settings with the 
SINEC PNI: 
1.  Select the device whose parameters you want to reset. 
2.  Click the "Reset device" button. 
3.  Select the "Reset to factory settings" option in the following dialog.