All I needed to do was below: (it helped at least for me) Open system preference Click on network Turn off your wifi Shut down your computer (if you're not able to do so press and hold power button for force shut down) Start your computer (your computer should already start behaving normal) Turn on your wifi back again Restart your computer with your wifi still turned on, it should be working now Issue for me was: My top menu disappeared I keyboard character keys were disabled other than while inputting the admin password No actions could be performed while clicking on anything in finder window When tried to force quit app, or simple relaunch the finder (Opt+Cmd+Esc) it would let me click anything from available apps Rebooting the device wasn't making the problem go away Couldn't even launch terminal because search feature wouldn't allow me to input command