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# Cannot Find DC with Multiple Installations on Single Computer

PSS ID Number: 114419

Article Last Modified on 10/30/2003

The information in this article applies to:

- Microsoft Windows NT Server 3.5
- Microsoft Windows NT Workstation 3.5

This article was previously published under Q114419

## SYMPTOMS

After you have installed multiple configurations of Windows NT on a single computer using the same machine name for each installation, when you start Windows NT, it cannot find the domain controller.

## CAUSE

When you run multiple installations of Windows NT on a single computer using the same machine name for each installation, one of these instances can modify the secure channel account password. This keeps the other instances from re-establishing communications with the domain controller.

## WORKAROUND

WARNING: Using the Registry Editor incorrectly can cause serious, system- wide problems that may require you to reinstall Windows NT to correct them. Microsoft cannot guarantee that any problems resulting from the use of the Registry Editor can be solved. Use this tool at your own risk.
To prevent this, set this registry key:

       HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\NetLogon\Parameters

to this value:

       DisablePasswordChange = [REG_DWORD] 0x01

- or -
use different machine names for each installation.

Additional query words: prodnt

Keywords: kbsetup KB114419
Technology: kbWinNT350search kbWinNTS350 kbWinNTS350search kbWinNTsearch kbWinNTSsearch kbWinNTW350 kbWinNTW350search kbWinNTWsearch