Failing to connect to wifi network - WIFly

These wifly's seem to be quite temperamental.

Anyway, I am trying to connect my wifly rn-xv module to my home wifi network. I am talking to it via Com 4 using Terra Term.

I type this :
<2.32> join

I get this:
Auto-Assoc chan=0 mode=NONE FAILED

I am certain my password I set is correct. What could be the causes for this?