Originally Posted by mantis92gsr

All the above answers are wrong, let me fill you all in on the color code here. White means you are connected to the access point but it is in a state where there is no data feed whatsoever to the internet. To test this you can set up an ad-hoc network but do not share a wired internet connection to your router. Once you enable internet sharing the connection will go green. 3G does the same thing if the network is having issues. Happens often where I am.