Wake-on-LAN functionality does not work on Windows Vista-based computers that use Broadcom network adapters and that have the _OSC method enabled

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Article ID: 960410 - View products that this article applies to.
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Consider the following scenario:
  • You have a computer that uses a Broadcom network adapter.
  • You enable the Wake-on-LAN (WOL) functionality on this computer.
  • The computer has the Operating System Capabilities (_OSC) method enabled to configure power management.
In this scenario, the computer does not resume from hibernation (S4) or from standby (S3).


This problem occurs because power management in Windows is performed by the PCI Bus driver (PCI.sys) instead of by ACPI.sys.

If you enable the _OSC method in the BIOS, the method does not wake the computer up from S4 or S3 mode when the network adapter receives a Wake-on-LAN (WOL) packet.


To work around this problem, disable the _OSC method if it is enabled in the BIOS.


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


Article ID: 960410 - Last Review: February 2, 2009 - Revision: 1.0
  • Windows Vista Home Basic
  • Windows Vista Home Premium
  • Windows Vista Ultimate
  • Windows Vista Enterprise
  • Windows Vista Business
  • Windows Vista Home Basic 64-bit Edition
  • Windows Vista Home Premium 64-bit Edition
  • Windows Vista Ultimate 64-bit Edition
  • Windows Vista Business 64-bit Edition
  • Windows Vista Enterprise 64-bit Edition
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