If you use WPA 2, it won't require the authentification at all. However, with WEP and WPA, it does. Right click on the wireless network icon (in the tool bar), select status. CLick on properties. Go into wireless networks. You should see your network in your preferred network. select it, then click on properties. select the authentification tab, uncheck enable IEE.. then click ok to close that window and ok to close the previous one. If it worked, you should not have anymore that waiting authentification non-sense.
Like I said, try WPA 2 and you should not even need any authentification.
By the way, in that propety window for your network, you will see a tab "association", you can renter the proper key at that spot.