A Laptop Computer Has No IP Address After Hibernating


Your laptop computer's IP address may become after the laptop hibernates if network connectivity is lost before the laptop hibernates. When the laptop returns from hibernation with network connectivity restored, the IP address is

You can see this issue by using the ipconfig command. To view your computer's IP address, type ipconfig at a command prompt. Using the ipconfig /renew command does not restore the IP address.

This problem was first seen on Windows 2000 with Quality of Service (QoS) and the Sniffer Pro 4.5 software by Checkpoint Software installed.


This issue occurs because laptop computer power-management state changes are sent to the Psched.sys driver, but the Psched.sys driver is not propagating. This causes MEDIA_CONNECT_STATUS messages to be sent to the transport that is bound above the Psched.sys miniport driver.


Service Pack Information

To resolve this problem, obtain the latest service pack for Microsoft Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
260910 How to Obtain the Latest Windows 2000 Service Pack

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.

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, submit a request to 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.
The English version of this fix should have the following file attributes or later:

Date Time Version Size File name
3-Jul-2002 17:33 5.0.2195.5928 60,496 Psched.sys


Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Microsoft Windows 2000 Service Pack 4.

More Information

This behavior has not been seen on desktop computers with power management. This behavior has been reproduced only on laptop computers.

The third-party products that are discussed in this article are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.

ID articol: 319270 - Ultima examinare: 19 iun. 2014 - Revizie: 1