Consider the following scenario. A Microsoft Windows XP Service Pack 2 (SP2)-based computer is configured for wireless network connectivity. You manually disconnect from a wireless network that uses a hidden (non-broadcast) service set identifier (SSID). In this scenario, you cannot reconnect automatically or manually to the wireless network that uses a hidden SSID. Additionally, the wireless network that uses a hidden SSID is no longer displayed in the Wireless Network Connection window.

Notes

•	You can access the Wireless Network Connection window by right-clicking on the wireless network connection icon in the notification area and clicking View Available Wireless Networks.
•	You can reconnect to the wireless network that uses a hidden SSID if you remove and then re-create the SSID profile for that network in the Preferred networks list.

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Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

To apply this hotfix, you must have Windows XP SP2 installed on the computer.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

File name	File version	File size	Date	Time	Platform	SP requirement	Service branch
Ndisuio.sys	5.1.2600.2626	14,592	08-Mar-2005	01:39	x86	SP2	SP2QFE
Netshell.dll	5.1.2600.2767	1,705,472	03-Oct-2005	20:28	x86	SP2	SP2QFE
Wzcdlg.dll	5.1.2600.2767	383,488	03-Oct-2005	20:28	x86	SP2	SP2QFE
Wzcsapi.dll	5.1.2600.2767	52,736	03-Oct-2005	20:28	x86	SP2	SP2QFE
Wzcsvc.dll	5.1.2600.2767	474,624	03-Oct-2005	20:28	x86	SP2	SP2QFE
Xpsp3res.dll	5.1.2600.2767	21,504	30-Sep-2005	23:29	x86	SP2	SP2QFE

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Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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After you install this hotfix, you can configure the computer to automatically connect to a specific wireless network that uses a hidden SSID. To do this, follow these steps:

1.	Click Start, click Run, type ncpa.cpl, and then click OK.
2.	In the Network Connections window, right-click Wireless Network Connection, and then click Properties.
3.	In the Wireless Network Connection Properties dialog box, click the Wireless Networks tab.
4.	Under Preferred networks, click the SSID profile name for the wireless network that uses a hidden SSID, and then click Properties.
5.	Click the Connection tab, click to select Connect when this network is in range, and then click OK.
6.	Click OK to close the Wireless Network Connection Properties dialog box.
7.	Close the Network Connections window.

For more information about standard terminology that is used to describe Microsoft software updates, click the following article number to view the article in the Microsoft Knowledge Base:

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