The assistant of configuration of the network without wire can not
function correctly under Windows XP after having installed the Service
Pack 2.

If the assistant of configuration of the r?au without wire does not
function correctly under Windows XP apr?l' installation of the Service
Pack 2, proc?r of F? following:

Click on D?rrer, on
Ex?ter, type ncpa.cpl, then click on OK. Click on Connexions r?au In
Connexions r?au, s?ctionnez your connection without wire, then click
on Modifier the param?es this connection. Under the R?aux mitre
without wire, activate the box?ocher Utiliser Windows to configure my
r?au without wire.
Then:
Click on D?rrer, on Ex?ter,
type %SystemRoot%\system32\services.msc /s, then click on OK
Double-click on automatic Configuration without wire. In the standard
list of d?rrage, click on Automatique, then on Appliquer. In the zone
Statute of the service, click on D?rrer, then on OK.

Information source: Support Microsoft (#871122)