My L1718S monitor go`s on and off all the time

The monitor switching off can be due to various reasons. I am ennumerating them..check each point carefully. 

1. check the vga cable and power cable going to the monitor. they may be loosely connected. make sure the cables are firmly into the port at both ends. 

2. there maybe power saving mode active... computer going into standby/suspend mode. check the power settings. right click desktop > properties> screensaver  tab... click power button.

3. If not using a UPS try checking the power supply for voltage fluctuations and spikes

Hope this will resolve your issue otherwise post back.

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