OK i have a few, fairly simple solutions. I did the same thing when I got my new computer with vista... and i think i know exactly what you did and how to fix it. OK here are most of the steps involved:
READ ENTIRE INSTRUCTIONS FIRST AND CHECK YOUR CONNECTION STATUS BEFORE CONTINUING ON TO EACH STEP!
1. Go to your "Network and Sharing Center". (Either in the control panel or typing it in on your start menu where it says "Start Search")
2. Next click "Manage Network Connections" (its on the very far left side, Under the "TASKS" column, THIRD option down, located underneath "connect to a network")
3. Once the widow opens that shows all saved Network Connections, FIND THE CONNECTION YOUR TRYING TO CONNECT TO.... RIGHT CLICK AND
DELETE. Continue to confirm you want to delete the connection.
4. Now go back the the "Network and Sharing Center" click connect to a network, find your connection, and click connect.
5. The depending on your connections security features, either enter your password, or if it is an unsecured network (which will make a huge difference in how you set up the settings) click "yes connect anyway".
6. Now you should be prompted to select your settings, you have to options-
READ ENTIRE INSTRUCTIONS FIRST AND CHECK YOUR CONNECTION STATUS BEFORE CONTINUING ON TO EACH STEP!
1) for an "
unsecured" connection you
"MUST"(setting may vary)
SELECT PUBLIC- then Next- then close!!,
this is KEY!... Depending on the
SET Requirements of the connection, (Vista (should) choose the correct setting for you, regarding; Network Discovery, File Sharing, etc. (those are the options below your selected connection with the little "
green lights" next to them))--- If you are
still "limited" status, change the "Sharing and Discovery" settings...
Network Discovery OFF or ON depending on current status, also
TURN FILE SHARING OFF! (if its not already), (an easy way to do this is to look on the "Network and Sharing Center" page under your connection, and
click the "green lights"). Also make sure "password protected sharing" is on (that
shouldn't make a difference in your connection status, its simply for your protection). NOW YOU SHOULD BE CONNECTED!!

if this does not work, feel free to ask me for more help!
2) for a "
Secure" connection, once the "Set Network Location" window opens (if it doesn't, click
"Customize" on the
"Network and Sharing Center" page, it should be on the right side of the window, under the "Internet" (Globe) Image, it is "link" format...
this will open the "Set Network Location" page)--- once you have that window open; select
"Private Network", then click next- then done- then close. Now here is the tricky part......... from personal experience
TURN ALL "GREEN LIGHTS" ON!!!... Network Discover ON, File Sharing ON, etc. This
should fix your problem, but if not, here are a couple trouble shooting tips-------
a) "Set Network Location" page, right side, last option, click "DIAGNOSE and REPAIR" it may give you the option to reset "wireless network adapter" do that first--- if that doesn't fix it, you should now have the option to "automatically RENEW IP ADDRESS" do that
second. After doing both you should be set to go.
b) Click
"CUSTOMIZE" again-- then at the very bottom of the "Set Network Location" page select
"MERGE OR DELETE NETWORK LOCATION" link... if you have several of the same location,
DELETE ALL duplicate locations,
EXCEPT FOR THE ONE "IN USE". Next click close and check you status.
c) none of these option work and you are still limited feel free to ask me for more help!
There are several trouble shooting options for this situation, but this reply is too long as it is, and theres no way I'm going to go over every single option. Although this pretty much covers it, theres still things you can do to fix it, SO DON'T GIVE UP JUST YET!!! Contact me by replying or if you can find my contact info on my profile, send me an email or aim message and ill be glad to help you out!!! HAVE A GREAT DAY ALL and I HOPE THIS HELPED!!!!!!!!

