Android emulator-5554 offline

Question

I\'m having a problem with emulator-5554, it keeps telling me it is offline.

When I do a adb devices from the command line it says

Answer 1

In my case, I found some process that makes adb not work well.
You can try to kill some strange process and run "adb devices" to test.

It worked for me:
kill the process name MONyog.exe