The other day, my computer gave me an internet error saying something about the wireless settings no longer matching up. I went into the settings, and selected WPA and used the key "september". After it still gave me the "Wireless settings" error, I took it off my preferred networks list. On my list of available networks, it suddenly became available. I tried to connect to it, and now it's claiming that it needs a key or passphrase.

So, if anyone has instructions or advice, it'd be greatly appreciated. Thanks!

What happens if you try "september" again? Sounds like someone is making changes to this wireless access point.