Error Message: System Cannot Log You on Because Domain <Computername> Is Not Available

Author: Jabez Ming Teik Gan MVP

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SUMMARY

An error "System Cannot Log You on Because Domain <Computername> Is Not Available" appears when you try to log on to Windows.

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When the user tries to log on to the computer in the Log On dialog, it will fail with the error "System Cannot Log You on Because Domain <Computername> Is Not Available". Log on using safe mode will not work either.

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CAUSE

This error is usually caused by corrupted system files netman.dll and/or netshell.dll or other networking related system files.

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RESOLUTION

To resolve this issue, you will need to run SFC (System File Checker) to verify the integrity of the system files. To run SFC, please follow the following instructions:

Run Recovery Console. For more information on how to run Recovery Console, please refer to KB307654.
Run the command:

sfc /scannow

Note: You might need to have your Windows CD on hand.

If the above doesn't work, please do a repair of Windows.

To do a repair of Windows, please refer to KB315341.

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MORE INFORMATION

For Windows 2000, please refer to KB244671.

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APPLIES TO

Microsoft Windows XP Service Pack 2
Microsoft Windows XP Home Edition
Microsoft Windows XP Professional
Microsoft Windows XP Service Pack 1
Microsoft Windows XP Media Center Edition 2002
Microsoft Windows XP Tablet PC Edition
Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
Microsoft Windows Server 2003, Standard Edition (32-bit x86)
Microsoft Windows Server 2003, Web Edition
Microsoft Small Business Server 2000 Standard Edition
Microsoft Windows Small Business Server 2003 Premium Edition
Microsoft Windows Small Business Server 2003 Standard Edition

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kbpubmvp kbpubtypecca kbhowto KB555939

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