Theory Freak

If you are having the following symptoms,  No wifi connectivity  Network status shows a dashed line Device Manager refreshes Network and Internet settings crashes Try this: Go to Windows Services (press Win + R, type services.msc , hit enter) Enable Network List Service .  Those symptoms should go away.  Original answer appears on:  answers.microsoft.com/en-us/windows/forum/all/wifi-status-appears-as-a-dashed-line-cannot-find/1e3b01e6-16b0-45b0-a4db-5414ae1c8bec

What to do if your Windows 10 computer cannot detect ViewSonic monitor over HDMI and shows the "no signal" error?  The following remedies may not work: Connecting the monitor via VGA. Switching the projecting through Win Key + P Restarting the computer.  Using a different HDMI cable.  Re-plugging the cables Solution:  Connect your monitor to a different device and ensure your monitor receives the signal. And then, disconnect from that device and connect it to the device you prefer.  That somehow reminded the monitor of its job.  In my case, I connected it to the IP TV receiver. It could be a different computer or your XBOX or satellite receiver.   Have a good day!