User Manual

E-10
Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows
OL-1394-06
Appendix E Configuring the Client Adapter through Windows XP
Configuring the Client Adapter
Step 10 If a pop-up message appears above the system tray informing you that you need to accept a certificate
to begin the EAP authentication process, click the message and follow the instructions provided to accept
the certificate.
Note You should not be prompted to accept a certificate for future authentication attempts. After you
accept one, the same certificate is used subsequently.
Step 11 If a message appears indicating the root certification authority for the server’s certificate, and it is the
correct certification authority, click OK to accept the connection. Otherwise, click Cancel.
Step 12 If a message appears indicating the server to which your client adapter is connected, and it is the correct
server to connect to, click OK to accept the connection. Otherwise, click Cancel.
The client adapter should now EAP authenticate.
Note Whenever the computer reboots and you enter your Windows username and password, the EAP
authentication process begins automatically and the client adapter should EAP authenticate.
Step 13 To verify authentication, double-click My Computer, Control Panel, and Network Connections. The
status appears to the right of your Wireless Network Connection. Click View and Refresh to obtain the
current status. If the client adapter is authenticated, the status reads Authentication succeeded.
Enabling PEAP Authentication
Follow the steps below to prepare the client adapter to use PEAP authentication, provided you have
completed the initial configuration.
Step 1 Click the Authentication tab on the Wireless Network Connection Properties screen. The following
screen appears (see Figure E-5).
Note In Service Pack 1 for Windows XP, the Authentication tab has moved from its previous location.
To access it, click the Wireless Networks tab, select the network that you are configuring in the
Preferred network list, and click Properties.