I have an iPhone 3GS, running 3.1.2 jailbroke with blackra1n. I have a 64bit WEP wifi network. When I try to login, it asks me to enter Username and Password. I don't have a username for the network, just a password. And entering just that gives me an "Unable to join network". When I don't have an AT&T signal, and I try to use Safari, it asks me to select a network. I choose my wifi network and it then says "Enterprise Wi-Fi Network: Do you want to continue joining this network?" and I've never seen that before. When I click OK, it again asks for username and password. I'd try to remove the network, but there is no "Forget this network" button. I tried going to Settings->General->Reset and click Reset Network Settings, but the network is still there. I have no problem connecting to this wifi network with other computers. And I can login to open networks with no problem. Now what do I do to connect with my iPhone?