On a portable Windows Vista-based computer, you occasionally receive an error message that resembles the following: This problem occurs if the following conditions are true:

•	The computer is running a program or a service that periodically wakes the computer from sleep to perform tasks and then puts the computer to sleep again.
•	The tasks are network-related or require network connectivity.
•	The computer uses a wireless connection for network connectivity.

Back to the top

Service pack information

To resolve this problem, obtain the latest service pack for Windows Vista. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

Back to the top

Hotfix information

A supported hotfix is now 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 service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:Note If additional issues occur or 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. To create a separate service request, visit the following Microsoft Web site:

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 item in Control Panel.

Windows Vista, x86-based versions

File name	File version	File size	Date	Time	Platform
Ndis.sys	6.0.6000.20504	500,840	28-Dec-2006	06:22	x86
Ndismigplugin.dll	6.0.6000.20504	127,488	28-Dec-2006	06:11	x86
Ndistrace.mof	Not applicable	4,548	19-Oct-2006	21:44	Not applicable
Update.mum	Not applicable	1,983	28-Dec-2006	17:45	Not applicable
X86_microsoft-windows-ndis.d_31bf3856ad364e35_6.0.6000.20504_none_6576a3ad062d7675.manifest	Not applicable	685	28-Dec-2006	17:45	Not applicable
X86_microsoft-windows-ndis_31bf3856ad364e35_6.0.6000.20504_none_a66e8748380286ff.manifest	Not applicable	135,587	28-Dec-2006	21:34	Not applicable

Windows Vista, 64-bit versions

File name	File version	File size	Date	Time	Platform
Amd64_microsoft-windows-ndis.d_31bf3856ad364e35_6.0.6000.20504_none_c1953f30be8ae7ab.manifest	Not applicable	689	28-Dec-2006	17:45	Not applicable
Amd64_microsoft-windows-ndis_31bf3856ad364e35_6.0.6000.20504_none_028d22cbf05ff835.manifest	Not applicable	135,657	28-Dec-2006	21:41	Not applicable
Ndis.sys	6.0.6000.20504	640,616	28-Dec-2006	06:46	x64
Ndismigplugin.dll	6.0.6000.20504	135,680	28-Dec-2006	06:36	x64
Ndistrace.mof	Not applicable	4,548	19-Oct-2006	21:44	Not applicable
Update.mum	Not applicable	1,983	28-Dec-2006	17:45	Not applicable

Back to the top

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Windows Vista Service Pack 1.

Back to the top

For more information about how hotfix packages are named, click the following article number to view the article in the Microsoft Knowledge Base: For more information, click the following article number to view the article in the Microsoft Knowledge Base:

Back to the top