Moniter keep going off and on

Did you make sure the data and power cables are securly fastened to the monitor, computer, and power strip?

Hi, After checking this issue, I suggest you can follow the steps below to test the result: 1. Confirm if the monitor cable is connected properly. 2. Check the Power Options. 3. Check screen saver settings. 4. If the issue persists, test the issue with another monitor. Hope it helps. Regards, Alex ZhaoPlease remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.