How to connect my printer to computer wirelessly

Something went wrong with my printer so dell sent me another same kind W715w refurbished printer. When setting it up for some reason it did not connect to the wireless setup. It is not communicating with my computer Can't un install it I'm getting a message the V715w is currently in use wait until the printer is finished printing and then uninstall. The light keeps blinking orange. Do I have to change anything in the setup window on the printer? in the network name on the printer window it says dlink. not sure about this. Any help would be greatly appreciated Glenda