Wireless issue 169 ip using Vista

[clivebuckwheat]

Hi

I work at a college on the IT staff, and I am trying to understand why this is occurring. For instance a student comes to the helpdesk with Vista on their laptop and they try to connect to our wireless network in the college and they get a 169.xx.xx.xx ip address. Needless to say they cannot connect to the wireless with this IP. After many hours of searching over Microsoft tech forums I found a fix that resolves the 169.XX.XX.XX Wireless Vista issue it as follows: This procedure does the following

Reset WINSOCK entries to installation defaults ,Reset IPv4 TCP/IP stack to installation defaults, and Reset IPv6 TCP/IP stack to installation defaults.

1.Turn off Vista firewall.--->Control Panel-->Windows Firewall-->OFF.

2.Start, Programs\Accessories and right click on Command Prompt, select "Run as Administrator" to open a command prompt. once command prompt is open as administrator type

the following

netsh winsock reset catalog and press enter

netsh int ipv4 reset reset.log and press enter

netsh int ipv6 reset reset.log and press enter

3.REBOOT THE LAPTOP.

As I said the student can after running this procedure on their laptop connect to our wireless network successfully, BUT the above commends seem to add extra network connections in vista, can someone explain why this is happening.