Switch or router? If it’s a router you should be able to log into the router using a browser with the (usual) default gateway 192.168.1.1 and see if your wireless device is recognized in there.
Its a Netgear WNR 3500. My Lenovo sees the network but it cannot apparently authenicate and I have the correct password for the homegroup. It would work when a network cable is connected after entering when prompted.
Maybe something corrupted during the first powerup and config when I entered the wireless stuff. Maybe I should have skipped and came back later. It bombed out on initial setup as well then. Other places locking to wifi is no problem at all.