Loss of Pass Phrase
When you enter a passphrase into the wireless setup it generates a WEP key from it, it then seems to lose all trace of the passphrase, leaving you with only the WEP key . This has caused problems for connecting people twice now as the passphrase does not seem to work anymore, you have to use the WEP key.
Seems a bit pointless to have the passphrase in the first place, but there you go.