Event 1301 Logged During Host-Initiated Password Change

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This article was previously published under Q310517

Symptoms

Host-initiated password changes are not replicated to the Windows NT or Windows 2000 accounts database when you are using the password synchronization feature that is included with Host Integration Server (HIS) 2000. The HIS 2000 host security components will log event 1301 messages similar to the following when this problem occurs:

Event ID: 1301
Source: SNA Host Security
Description: The database received a request it did not understand Supplied code %1

Event ID: 1301
Source: SNA Host Security
Description: The database received a request it did not understand Supplied code, send UdiChPwdRq to Mdb <Windows NT/2000 domain name> failed

Event ID: 1301
Source: SNA Host Security
Description: The database received a request it did not understand Supplied code, HprReplicatedUpdate Failed <Host Security domain name>

Event ID: 1301
Source: SNA Host Security
Description: The database received a request it did not understand Supplied code, HPR_CHANGE_PASSWORD_REQUEST

NOTE: The event 1301 messages will be logged in the Application Event Log on the Windows NT 4.0 Primary Domain Controller (PDC) or Windows 2000 PDC emulator where the SNA Host Account Cache and SNA WinNT Account Synchronization services are installed.

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Cause

The SNA Host Account Cache (SnaDatabase) service fails to obtain the Windows NT or Windows 2000 domain name prior to validating the length of the domain name. This results in the event 1301 messages and the failure to update the user's Windows NT or Windows 2000 password.

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Resolution

To resolve this problem, obtain the latest service pack for Host Integration Server 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

328152� How to Obtain the Latest Host Integration Server 2000 Service Pack

The English version of this fix should have the following file attributes or later:

Collapse this tableExpand this table

File name	Date	Time
Snaudb.exe	10/15/2001	01:05 PM

NOTE: Because of file dependencies, the most recent fix that contains the preceding files may also contain additional files.

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Status

Microsoft has confirmed that this is a problem in Microsoft Host Integration Server 2000. This problem was first corrected in Host Integration Server 2000 Service Pack 1.

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More information

The HIS 2000 Host Security Integration feature supports one-way host- initiated password synchronization to IBM mainframes and AS/400s. Environments that perform host-initiated password synchronizations require a third-party password synchronization application in addition to the HIS 2000 Host Security Integration components.

The following Knowledge Base article describes another problem that can occur with host-initiated password changes when using HIS 2000:

310934� Event 51 Logged During Failed Host-Initiated Password Change

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