You do not need to use the Wireless Wizard. Categorically unnecessary, so don't worry about that. It's important to see the network and the connections across that network as two entirely seperate things; the network is created using the Network Setup Wizard once the connections have been established, while the wireless connections are established by using Windows' ability to search for and connect to available networks.
So you need to start from a wired PC and ensure that all the relevant settings in the router config are correct. Then move over to a wireless PC (they can be one and the same if you make use of your wireless PC's RJ45 port; the Ethernet connection does not have to be permanent) and look for available networks (remembering to refresh the list manually otherwise you won't see any). Then attempt to connect and create the required rules in your client firewall when prompted to do so.