My screen and computer {DELL} shut down only when I go on line, works fine off line. I have changed out screen, VGA cable, Key board and power cord. Any suggestions what the trouble could be ??
Id go into the bios and kill any wake/sleep on LAN settings as well as turning off C and if possible, S states. Also disable sleep from power management in windows. You changed the components that were 100% likely not to be the cause of the issue btw.