netgear prosafe does not connect to the wifi

Prosafe what?

Most prosafe devices are switches, not routers or wifi devices. 

Manuals are always a good place to start.

Visit the support pages:

Support | NETGEAR

Feed in your model number and check the documentation for your hardware.

You may have done that already. I can't tell from your message.

I mention it because Netgear gave up on supplying paper manuals and CD versions some years ago and people sometimes miss the downloads.