Oculus occasionally has some issues, so here is some standard things to do for troubleshooting.
Nothing showing up on screen?
Game or Menu Appearing Off in the Distance/ Not in Front of You?
Touch Controller Not Connecting?
How to Slide the Battery Cover off to replace the Battery
Note: the Battery cover is magnetized to stay on and can feel like its not budging, try changing the angle your pushing at and try again
Motion Sick?
Adjust the volume?
Game not loading?
If you are using the Oculus Rift, you do not have to worry about using Air Link however if you are trying to connect a different headset such as an Quest 2 and don't have a cable then this will apply to you. Air Link will be disabled if the headset is connected via cable to the desktop. This is because Cable Link overrides Air Link.