Article ID: 946481 - View products that this article applies to.
Consider the following scenario. You use a local area network (WLAN) device on a computer that is running Windows Vista or Windows 7 ("Computer A") to establish a computer-to-computer (ad hoc) connection that has WPA2 specified. You have another Windows Vista-based or Windows 7-based computer ("Computer B") that also has a wireless adapter installed.
In this scenario, when you try to establish an ad hoc connection from Computer B, you may receive the following error message:
Note In this error message, Network Name is a placeholder for the name of the ad hoc connection.
Windows cannot connect to Network Name
Alternatively, you may not receive this error message sometimes. However, you may notice the following symptoms:
This problem occurs because the Windows operating system does not automatically recover when a WPA2 ad hoc network connection times out. A time-out may occur if one of the following conditions is true:
Note Microsoft has released Windows Vista Service Pack 1 (SP1) and Windows Vista Service Pack 2 (SP2). This service pack includes improvements in WLAN reliability. Before you troubleshoot a WLAN issue, you should verify that Windows Vista SP1 or a later service pack is installed on the Windows Vista-based computer. For more information about how to obtain the latest Windows Vista service pack, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/935791/ )How to obtain the latest Windows Vista service pack
Workaround 1To work around this problem, set up another new Ad Hoc profile.
Workaround 2To work around this problem, reconnect the ad hoc connection on both Computer and Computer B.
To resolve this problem, improve the reliability of the Windows operating system in a WPA2 ad hoc environment. To do this, follow these steps:
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Article ID: 946481 - Last Review: February 24, 2010 - Revision: 8.0