The Wireless Switch is broken, how can turn it on now?

Ehh.. Need more detail, laptop model would be nice. Are you saying that the router is broken? or the Wifi card in your laptop is broken?

It is hard to give a good answer to a vague question.

Look to your left, it's there. You need to hit it with a size 12 Italian shoe, nothing else will work.

As above, you may want to put in some more details.