What does it mean when.....

[Karl Schmitt <itchy optonline net>]

What does it mean when the circles with the blue comet trail going 
around and when I hover over them I get the popup text:

Waiting for Network Key for the wireless network

If I wait long enough this finally gives up and "No network connection" 
is the popup.


Also, what does it mean when I get the same circling thingy but the 
popup message is:

Attempting to join the wireless network 'MyNetworkName'...

Thanks