Vista Local Access Only Problem
1) Go into network connections, find your wireless network connection icon, right-click it and disable it. Re-enable it and see if you can get online.
2) as above, but reboot after disabling, and once your computer comes back on, re-enable.
3) Go into Device Manager, find your wireless network adapter, uninstall it, and reboot the computer. Vista should detect it and hopefully automatically install it again. You may need the driver disk that came with your computer though.
go into that command prompt again and type ipconfig /renew Wireless* and press enter.