Here's my situation:
I have a computer and a projector that I need to connect wirelessly.
Is it possible to use a router at each end and transfer data that way?
Excuse my ignorance if this is a stupid question.
What model computer? What model projector? If the projector has built-in Miracast or has HDMI input then you could probably wirelessly connect video and sound but without knowing more about both your computer and the projector we would just be guessing.