Setting up the Wireless-LAN under Windows XP

Preconditions

The necessary preconditions for the use of the Muenster University WLAN are a ZIV user ID and a password for network access. You can get a user ID at the ZIV (Mein ZIV), or from an event assistant for the duration of the event. The password for network access can also be set up at Mein ZIV.

Setting up wireless-LAN-connection

Choose Start -> Settings -> Network connections -> Wireless network connections

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Choose the icon wireless network connections and click change settings of this connection (image 1) on the left.

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Click change extended settings (image 2) on the left.

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Choose the entry Internet protocol (TCP/IP) and click properties (image 3).

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Activate the options receive IP-Address automatically and receive DNS-Server address automatically and click OK (image 4). You will now get back to image 3. There click the tab wireless networks.

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Click Add (image 5).

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As user name (SSID) enter uni-ms (image 6).

Choose WPA as the type of the network authentication (image 6). If WPA is not available, either your wireless-LAN-card or the driver does not support it. Try to update the driver or get newer hardware. Use of the wireless-LANs is not possible, if your driver or your wireless-LAN-card do not at least support WPA.

Adjust the data encryption on TKIP or if available on AES (image 6). AES is more secure, but this encryption is at the moment only supported by very few wireless-LAN-cards. Our hotspots support TKIP and AES.

Now click the tab authentication (image 6).

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As EAP-Type choose Protected EAP (PEAP) (image 7).

Deactivate the option authenticate as computer, when computer information is available (image 7).

Deactivate the option authenticate as guest, when user or computer information are not available (image 7).

Then click properties (image 7).

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Deactivate the option check server certificate (image 8).

Click configure (image 8). Please make sure that you choose the entry secure password (EAP-MSCHAP v2) from the menu choose authentication method.

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Deactivate the option choose own windows registration name and password (and domain, if available) automatically (image 9).

Click OK (image 9). Now you get back to image 7.

Click the tab connection (image 7).

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Activate the option set up connection if net is within range (image 10).

Click OK (Bild 10). Now you get back to image 5. There you will find a new entry in the menu preferred networks (image 11).

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Click OK (image 11). Now you get back to the window wireless network connection (image 2 respectively image 12).

Connecting to wireless LAN

When a wireless-LAN-cell is within range, the window will look like the one in image 12.

It is possible that on your server there is still a connection to the wireless-LAN with the network (SSID) Funk-Hoer1 eingerichtet. The wireless-LAN Funk-Hoer1 will no longer operate. It should therefore no longer be used.

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When the server has set up a connection with the wireless-LAN-cell (network name uni-ms) you will see an information window in the task menu below (popup, image 13).

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Click the information window. You will now be asked to enter your user ID (image 14).

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As user name and password enter your central user ID and your password for network access (not the central standard password). Do not enter a registration domain.

Then click OK (image 14). User name and password will now be checked. If the connection has been set up successfully, you will again see an information window (Popup, image 15).

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This completes the installation of the wireless-LAN connection and you are connected with the wireless-LAN.

Resorting to a bag of tricks (delete user information)

TIP Once the user information for WPA has been entered into the operating system Windows XP, it will save this information and you will not need to enter them again. Normally this is seen as a convenient feature. Unfortunately, Windows does not offer the choice to deactivate the saving of the information, and sometimes one would like to be able to delete user information. In order to do that, you need to delete a key in the registry.

The key that can be deleted is:
HKEY_CURRENT_USER\Software\Microsoft\Eapol\UserEapInfo
More detailed information can be found in the following Microsoft article:
http://support.microsoft.com/kb/823731/en-us

The key can also be deleted with the following batch-file.
Download the batch file and execute the file with a double click..

ALERT! Please note: be careful when working at the registry. We do not accept responsibility for works at the registry and the use of the batch-file.

VisualBasicScript-file showing the MAC-Address of the access point (with the right mouse button click “save as”; then “go to”): Script file

-- LauraOeste - 2011-05-04

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Topic revision: r1 - 2011-05-04 - l_5foest01
 
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