MOSS event ID 3351 Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'   <div class=ForumPostContentText> <p>Hi,</p> <p>I've got a lot of 3351 events in my event viewer, every day at the same hour (23:00PM, 2:00AM, 16:30PM). I've tried to restart services and web aplication, but it doesn't help.<span></p> <p><font size=2>SQL database login failed. Additional error information from SQL Server is included below.</font></p> <p><font size=2>Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'.</font></p> <p>Please help</p></span> <p><font size=1 face=Tahoma>My log file:</font></p> <p><font size=1 face=Tahoma>02/11/2009 02:00:04.87  SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Database                       880i High     System.Data.SqlClient.SqlException: Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'.     at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)     at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)     at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)     at System.Data.SqlClient.SqlInternalConnectionTds.CompleteLogin(Boolean enlistOK)     at System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart)     at Syste...  <br>02/11/2009 02:00:04.87* SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Database                       880i High     ...m.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance)     at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance)     at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection)     at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options)     at System.Data.ProviderBase.DbConnectionPool.C...  <br>02/11/2009 02:00:04.87* SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Database                       880i High     ...reateObject(DbConnection owningObject)     at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject)     at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)     at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)     at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)     at System.Data.SqlClient.SqlConnection.Open()     at Microsoft.SharePoint.Utilities.SqlSession.OpenConnection()  <br>02/11/2009 02:00:04.87  SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Database                       880j High     SqlError: 'Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'.'    Source: '.Net SqlClient Data Provider' Number: 18456 State: 1 Class: 14 Procedure: '' LineNumber: 65536 Server: 'nero\moss'  <br>02/11/2009 02:00:04.87  SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Database                       6y64 Critical SQL database login failed. Additional error information from SQL Server is included below.  Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'.  <br>02/11/2009 02:00:04.89  SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Database                       880k High        at Microsoft.SharePoint.Utilities.SqlSession.ExecuteReader(SqlCommand command, CommandBehavior behavior)     at Microsoft.SharePoint.Administration.SPConfigurationDatabase.FetchId(QualifiedObjectName qName)     at Microsoft.SharePoint.Administration.SPConfigurationDatabase.GetObject(String name, Guid parentId, Type type)     at Microsoft.SharePoint.Administration.SPConfigurationDatabase.get_Farm()     at Microsoft.SharePoint.Administration.SPConfigurationDatabase.SPFileSystemCacheWatcher.OnChanged(Object source, FileSystemEventArgs e)     at System.IO.FileSystemWatcher.CompletionStatusChanged(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* overlappedPointer)     at System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped...  <br>02/11/2009 02:00:04.89  SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Database                       880k High        at Microsoft.SharePoint.Utilities.SqlSession.ExecuteReader(SqlCommand command, CommandBehavior behavior)     at Microsoft.SharePoint.Administration.SPConfigurationDatabase.FetchId(QualifiedObjectName qName)     at Microsoft.SharePoint.Administration.SPConfigurationDatabase.GetObject(String name, Guid parentId, Type type)     at Microsoft.SharePoint.Administration.SPConfigurationDatabase.get_Farm()     at Microsoft.SharePoint.Administration.SPConfigurationDatabase.SPFileSystemCacheWatcher.OnChanged(Object source, FileSystemEventArgs e)     at System.IO.FileSystemWatcher.CompletionStatusChanged(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* overlappedPointer)     at System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped...  <br>02/11/2009 02:00:04.89* SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Database                       880k High     ...* pOVERLAP)    <br>02/11/2009 02:00:04.89* SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Database                       880k High     ...* pOVERLAP)    <br>02/11/2009 02:00:04.89  SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Database                       880l High     ConnectionString: 'Data Source=nero\moss;Initial Catalog=SharePoint_Config;Integrated Security=True;Enlist=False'    ConnectionState: Closed ConnectionTimeout: 15  <br>02/11/2009 02:00:04.89  SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Database                       880l High     ConnectionString: 'Data Source=nero\moss;Initial Catalog=SharePoint_Config;Integrated Security=True;Enlist=False'    ConnectionState: Closed ConnectionTimeout: 15  <br>02/11/2009 02:00:04.89  SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Topology                       888j Medium   System.Data.SqlClient.SqlException: Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'.     at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)     at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)     at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)     at System.Data.SqlClient.SqlInternalConnectionTds.CompleteLogin(Boolean enlistOK)     at System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart)     at Syste...  <br>02/11/2009 02:00:04.89  SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Topology                       888j Medium   System.Data.SqlClient.SqlException: Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'.     at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)     at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)     at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)     at System.Data.SqlClient.SqlConnection.Open()     at Microsoft.SharePoint.Utilities.SqlSession.OpenConnection()     at Microsoft.SharePoint.Utilities.SqlSession.ExecuteReader(SqlCommand command, CommandBehavior behavior)     at Microsoft.SharePoint.Administration.SPConfigurationDatabase.FetchId(QualifiedObjectName qName)     at Microsoft.SharePoint.Administration.SPConfigurationDat...  <br>02/11/2009 02:00:04.89* SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Topology                       888j Medium   ...m.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance)     at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance)     at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection)     at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options)     at System.Data.ProviderBase.DbConnectionPool.C...  <br>02/11/2009 02:00:04.89* SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Topology                       888j Medium   ...abase.GetObject(String name, Guid parentId, Type type)     at Microsoft.SharePoint.Administration.SPConfigurationDatabase.get_Farm()     at Microsoft.SharePoint.Administration.SPConfigurationDatabase.SPFileSystemCacheWatcher.OnChanged(Object source, FileSystemEventArgs e)  <br>02/11/2009 02:00:04.89* SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Topology                       888j Medium   ...reateObject(DbConnection owningObject)     at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject)     at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)     at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)     at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)     at System.Data.SqlClient.SqlConnection.Open()     at Microsoft.SharePoint.Utilities.SqlSession.OpenConnection()     at Microsoft.SharePoint.Utilities.SqlSession.ExecuteReader(SqlCommand command, CommandBehavior behavior)     at Microsoft.SharePoint.Administration.SPConfigurationDatabase.FetchId(QualifiedObjectName qName)     at Microsoft.S...  <br>02/11/2009 02:00:04.89  SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Database                       880i High     System.Data.SqlClient.SqlException: Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'.     at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)     at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)     at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)     at System.Data.SqlClient.SqlConnection.Open()     at Microsoft.SharePoint.Utilities.SqlSession.OpenConnection()  <br>02/11/2009 02:00:04.89* SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Topology                       888j Medium   ...harePoint.Administration.SPConfigurationDatabase.GetObject(String name, Guid parentId, Type type)     at Microsoft.SharePoint.Administration.SPConfigurationDatabase.get_Farm()     at Microsoft.SharePoint.Administration.SPConfigurationDatabase.SPFileSystemCacheWatcher.OnChanged(Object source, FileSystemEventArgs e)  <br>02/11/2009 02:00:04.89  SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Database                       880j High     SqlError: 'Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'.'    Source: '.Net SqlClient Data Provider' Number: 18456 State: 1 Class: 14 Procedure: '' LineNumber: 65536 Server: 'nero\moss'  <br>02/11/2009 02:00:04.89  SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Database                       880i High     System.Data.SqlClient.SqlException: Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'.     at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)     at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)     at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)     at System.Data.SqlClient.SqlConnection.Open()     at Microsoft.SharePoint.Utilities.SqlSession.OpenConnection()  <br>02/11/2009 02:00:04.89  SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Database                       6y64 Critical SQL database login failed. Additional error information from SQL Server is included below.  Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'.  <br>02/11/2009 02:00:04.89  SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Database                       880j High     SqlError: 'Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'.'    Source: '.Net SqlClient Data Provider' Number: 18456 State: 1 Class: 14 Procedure: '' LineNumber: 65536 Server: 'nero\moss'  </font></p> <p> </p> <p><font face=Arial>tnx</font></p> <p><font face=Arial>klemen</font></p></div>© 2009 Microsoft Corporation. All rights reserved.Mon, 02 Mar 2009 08:07:59 Z7efeefce-129e-4a03-9ff7-900d6168952bhttp://social.technet.microsoft.com/Forums/en-US/sharepointadmin/thread/7efeefce-129e-4a03-9ff7-900d6168952b#7efeefce-129e-4a03-9ff7-900d6168952bhttp://social.technet.microsoft.com/Forums/en-US/sharepointadmin/thread/7efeefce-129e-4a03-9ff7-900d6168952b#7efeefce-129e-4a03-9ff7-900d6168952bKlemen30http://social.technet.microsoft.com/Profile/en-US/?user=Klemen30MOSS event ID 3351 Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'   <div class=ForumPostContentText> <p>Hi,</p> <p>I've got a lot of 3351 events in my event viewer, every day at the same hour (23:00PM, 2:00AM, 16:30PM). I've tried to restart services and web aplication, but it doesn't help.<span></p> <p><font size=2>SQL database login failed. Additional error information from SQL Server is included below.</font></p> <p><font size=2>Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'.</font></p> <p>Please help</p></span> <p><font size=1 face=Tahoma>My log file:</font></p> <p><font size=1 face=Tahoma>02/11/2009 02:00:04.87  SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Database                       880i High     System.Data.SqlClient.SqlException: Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'.     at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)     at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)     at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)     at System.Data.SqlClient.SqlInternalConnectionTds.CompleteLogin(Boolean enlistOK)     at System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart)     at Syste...  <br>02/11/2009 02:00:04.87* SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Database                       880i High     ...m.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance)     at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance)     at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection)     at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options)     at System.Data.ProviderBase.DbConnectionPool.C...  <br>02/11/2009 02:00:04.87* SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Database                       880i High     ...reateObject(DbConnection owningObject)     at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject)     at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)     at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)     at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)     at System.Data.SqlClient.SqlConnection.Open()     at Microsoft.SharePoint.Utilities.SqlSession.OpenConnection()  <br>02/11/2009 02:00:04.87  SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Database                       880j High     SqlError: 'Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'.'    Source: '.Net SqlClient Data Provider' Number: 18456 State: 1 Class: 14 Procedure: '' LineNumber: 65536 Server: 'nero\moss'  <br>02/11/2009 02:00:04.87  SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Database                       6y64 Critical SQL database login failed. Additional error information from SQL Server is included below.  Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'.  <br>02/11/2009 02:00:04.89  SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Database                       880k High        at Microsoft.SharePoint.Utilities.SqlSession.ExecuteReader(SqlCommand command, CommandBehavior behavior)     at Microsoft.SharePoint.Administration.SPConfigurationDatabase.FetchId(QualifiedObjectName qName)     at Microsoft.SharePoint.Administration.SPConfigurationDatabase.GetObject(String name, Guid parentId, Type type)     at Microsoft.SharePoint.Administration.SPConfigurationDatabase.get_Farm()     at Microsoft.SharePoint.Administration.SPConfigurationDatabase.SPFileSystemCacheWatcher.OnChanged(Object source, FileSystemEventArgs e)     at System.IO.FileSystemWatcher.CompletionStatusChanged(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* overlappedPointer)     at System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped...  <br>02/11/2009 02:00:04.89  SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Database                       880k High        at Microsoft.SharePoint.Utilities.SqlSession.ExecuteReader(SqlCommand command, CommandBehavior behavior)     at Microsoft.SharePoint.Administration.SPConfigurationDatabase.FetchId(QualifiedObjectName qName)     at Microsoft.SharePoint.Administration.SPConfigurationDatabase.GetObject(String name, Guid parentId, Type type)     at Microsoft.SharePoint.Administration.SPConfigurationDatabase.get_Farm()     at Microsoft.SharePoint.Administration.SPConfigurationDatabase.SPFileSystemCacheWatcher.OnChanged(Object source, FileSystemEventArgs e)     at System.IO.FileSystemWatcher.CompletionStatusChanged(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* overlappedPointer)     at System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped...  <br>02/11/2009 02:00:04.89* SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Database                       880k High     ...* pOVERLAP)    <br>02/11/2009 02:00:04.89* SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Database                       880k High     ...* pOVERLAP)    <br>02/11/2009 02:00:04.89  SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Database                       880l High     ConnectionString: 'Data Source=nero\moss;Initial Catalog=SharePoint_Config;Integrated Security=True;Enlist=False'    ConnectionState: Closed ConnectionTimeout: 15  <br>02/11/2009 02:00:04.89  SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Database                       880l High     ConnectionString: 'Data Source=nero\moss;Initial Catalog=SharePoint_Config;Integrated Security=True;Enlist=False'    ConnectionState: Closed ConnectionTimeout: 15  <br>02/11/2009 02:00:04.89  SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Topology                       888j Medium   System.Data.SqlClient.SqlException: Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'.     at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)     at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)     at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)     at System.Data.SqlClient.SqlInternalConnectionTds.CompleteLogin(Boolean enlistOK)     at System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart)     at Syste...  <br>02/11/2009 02:00:04.89  SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Topology                       888j Medium   System.Data.SqlClient.SqlException: Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'.     at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)     at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)     at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)     at System.Data.SqlClient.SqlConnection.Open()     at Microsoft.SharePoint.Utilities.SqlSession.OpenConnection()     at Microsoft.SharePoint.Utilities.SqlSession.ExecuteReader(SqlCommand command, CommandBehavior behavior)     at Microsoft.SharePoint.Administration.SPConfigurationDatabase.FetchId(QualifiedObjectName qName)     at Microsoft.SharePoint.Administration.SPConfigurationDat...  <br>02/11/2009 02:00:04.89* SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Topology                       888j Medium   ...m.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance)     at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance)     at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection)     at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options)     at System.Data.ProviderBase.DbConnectionPool.C...  <br>02/11/2009 02:00:04.89* SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Topology                       888j Medium   ...abase.GetObject(String name, Guid parentId, Type type)     at Microsoft.SharePoint.Administration.SPConfigurationDatabase.get_Farm()     at Microsoft.SharePoint.Administration.SPConfigurationDatabase.SPFileSystemCacheWatcher.OnChanged(Object source, FileSystemEventArgs e)  <br>02/11/2009 02:00:04.89* SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Topology                       888j Medium   ...reateObject(DbConnection owningObject)     at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject)     at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)     at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)     at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)     at System.Data.SqlClient.SqlConnection.Open()     at Microsoft.SharePoint.Utilities.SqlSession.OpenConnection()     at Microsoft.SharePoint.Utilities.SqlSession.ExecuteReader(SqlCommand command, CommandBehavior behavior)     at Microsoft.SharePoint.Administration.SPConfigurationDatabase.FetchId(QualifiedObjectName qName)     at Microsoft.S...  <br>02/11/2009 02:00:04.89  SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Database                       880i High     System.Data.SqlClient.SqlException: Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'.     at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)     at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)     at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)     at System.Data.SqlClient.SqlConnection.Open()     at Microsoft.SharePoint.Utilities.SqlSession.OpenConnection()  <br>02/11/2009 02:00:04.89* SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Topology                       888j Medium   ...harePoint.Administration.SPConfigurationDatabase.GetObject(String name, Guid parentId, Type type)     at Microsoft.SharePoint.Administration.SPConfigurationDatabase.get_Farm()     at Microsoft.SharePoint.Administration.SPConfigurationDatabase.SPFileSystemCacheWatcher.OnChanged(Object source, FileSystemEventArgs e)  <br>02/11/2009 02:00:04.89  SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Database                       880j High     SqlError: 'Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'.'    Source: '.Net SqlClient Data Provider' Number: 18456 State: 1 Class: 14 Procedure: '' LineNumber: 65536 Server: 'nero\moss'  <br>02/11/2009 02:00:04.89  SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Database                       880i High     System.Data.SqlClient.SqlException: Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'.     at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)     at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)     at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)     at System.Data.SqlClient.SqlConnection.Open()     at Microsoft.SharePoint.Utilities.SqlSession.OpenConnection()  <br>02/11/2009 02:00:04.89  SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Database                       6y64 Critical SQL database login failed. Additional error information from SQL Server is included below.  Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'.  <br>02/11/2009 02:00:04.89  SPWRITER.EXE (0x08F4)                    0x0720 Windows SharePoint Services    Database                       880j High     SqlError: 'Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'.'    Source: '.Net SqlClient Data Provider' Number: 18456 State: 1 Class: 14 Procedure: '' LineNumber: 65536 Server: 'nero\moss'  </font></p> <p> </p> <p><font face=Arial>tnx</font></p> <p><font face=Arial>klemen</font></p></div>Wed, 11 Feb 2009 07:07:58 Z2009-02-11T07:07:58Zhttp://social.technet.microsoft.com/Forums/en-US/sharepointadmin/thread/7efeefce-129e-4a03-9ff7-900d6168952b#da862aa7-f47d-4ad5-a3fb-d4f8fd1109ebhttp://social.technet.microsoft.com/Forums/en-US/sharepointadmin/thread/7efeefce-129e-4a03-9ff7-900d6168952b#da862aa7-f47d-4ad5-a3fb-d4f8fd1109ebMadhur Ahujahttp://social.technet.microsoft.com/Profile/en-US/?user=Madhur%20AhujaMOSS event ID 3351 Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON' Check if this article from MSDN helps:<br>http://technet.microsoft.com/en-us/library/cc561068.aspx<br><br>--<br>Madhur<br> <hr class="sig">http://blogs.msdn.com/mahujaWed, 11 Feb 2009 08:46:42 Z2009-02-11T08:46:42Zhttp://social.technet.microsoft.com/Forums/en-US/sharepointadmin/thread/7efeefce-129e-4a03-9ff7-900d6168952b#de886a91-2301-449e-af3d-2b3ff3ab4e27http://social.technet.microsoft.com/Forums/en-US/sharepointadmin/thread/7efeefce-129e-4a03-9ff7-900d6168952b#de886a91-2301-449e-af3d-2b3ff3ab4e27Klemen30http://social.technet.microsoft.com/Profile/en-US/?user=Klemen30MOSS event ID 3351 Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON' Hi, <br><br>Service accounts and security rights on databases are OK, in fact everything is working fine, but I want to get rid of 3351 events.... it seems I've got hundreds of them in my event viewer...<br><br>tnx<br>klemen<br>Wed, 11 Feb 2009 11:11:54 Z2009-02-11T11:11:54Zhttp://social.technet.microsoft.com/Forums/en-US/sharepointadmin/thread/7efeefce-129e-4a03-9ff7-900d6168952b#67f1eb8b-b7b6-4ee8-962a-191a7e1a8f1fhttp://social.technet.microsoft.com/Forums/en-US/sharepointadmin/thread/7efeefce-129e-4a03-9ff7-900d6168952b#67f1eb8b-b7b6-4ee8-962a-191a7e1a8f1fHenrik Halmstrandhttp://social.technet.microsoft.com/Profile/en-US/?user=Henrik%20HalmstrandMOSS event ID 3351 Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON' Check this thread, exactly the same:<br><a href="http://social.technet.microsoft.com/Forums/en-US/sharepointadmin/thread/af528a14-057c-464e-bfd9-4582121d16d0/">http://social.technet.microsoft.com/Forums/en-US/sharepointadmin/thread/af528a14-057c-464e-bfd9-4582121d16d0/</a><br><br>Regards<br>/HenrikWed, 11 Feb 2009 13:47:35 Z2009-02-11T13:47:35Zhttp://social.technet.microsoft.com/Forums/en-US/sharepointadmin/thread/7efeefce-129e-4a03-9ff7-900d6168952b#13555bae-e95f-462a-9f73-13dccdeb0ab2http://social.technet.microsoft.com/Forums/en-US/sharepointadmin/thread/7efeefce-129e-4a03-9ff7-900d6168952b#13555bae-e95f-462a-9f73-13dccdeb0ab2Lu Zou-MSFThttp://social.technet.microsoft.com/Profile/en-US/?user=Lu%20Zou-MSFTMOSS event ID 3351 Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'   <p style="background:white"><span style="font-size:10pt;color:#080808;font-family:'Arial','sans-serif'">Hi,</span></p> <p style="background:white"><span style="font-size:10pt;color:#080808;font-family:'Arial','sans-serif'">Please check the account name of the application pool of the portal site to see if it is a domain account. If not, reset the application pool account to the domain account to see if it works. </span></p> <p style="background:white"><span style="font-size:10pt;color:#080808;font-family:'Arial','sans-serif'">Please let me know if there is any misunderstanding. Thanks!</span></p> <p style="background:white"><span style="font-size:10pt;color:#080808;font-family:'Arial','sans-serif'">Lu Zou</span></p>Thu, 12 Feb 2009 07:29:10 Z2009-02-12T07:29:10Zhttp://social.technet.microsoft.com/Forums/en-US/sharepointadmin/thread/7efeefce-129e-4a03-9ff7-900d6168952b#acdd84f2-655c-4040-9c14-ce7fd607b36ehttp://social.technet.microsoft.com/Forums/en-US/sharepointadmin/thread/7efeefce-129e-4a03-9ff7-900d6168952b#acdd84f2-655c-4040-9c14-ce7fd607b36eKlemen30http://social.technet.microsoft.com/Profile/en-US/?user=Klemen30MOSS event ID 3351 Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON' Hi,<br><br>I've noticed that event 3351 pops up  even during backup (STSADM), but backup completed OK.<br><br>So, I followed the instructions in thread <a href="http://social.technet.microsoft.com/Forums/en-US/sharepointadmin/thread/af528a14-057c-464e-bfd9-4582121d16d0/">http://social.technet.microsoft.com/Forums/en-US/sharepointadmin/thread/af528a14-057c-464e-bfd9-4582121d16d0/</a> <br>and run command line   <code>psconfig.exe -cmd secureresources<br><font face=Verdana>Than I restarted my web front end server and run backup again for test. The event 3351 is not showing durig backup anymore!<br>It's posible that PSCONFIG is the solution... well I'll have to wait till tomorrow morning and check my event viewer.<br><br>tnx,<br><br>klemen<br></font></code>Thu, 12 Feb 2009 08:21:35 Z2009-02-12T08:21:35Zhttp://social.technet.microsoft.com/Forums/en-US/sharepointadmin/thread/7efeefce-129e-4a03-9ff7-900d6168952b#1d8fcaa9-44d8-46c0-842a-b133d45bc20chttp://social.technet.microsoft.com/Forums/en-US/sharepointadmin/thread/7efeefce-129e-4a03-9ff7-900d6168952b#1d8fcaa9-44d8-46c0-842a-b133d45bc20cKlemen30http://social.technet.microsoft.com/Profile/en-US/?user=Klemen30MOSS event ID 3351 Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'   <p>Unfortunately, this is not the solution, 3351 events are back  (20:30PM, 1:30AM, 2:00AM)</p> <p>:(</p> <p>tnx</p> <p>klemen</p>Fri, 13 Feb 2009 09:12:23 Z2009-02-13T09:12:23Zhttp://social.technet.microsoft.com/Forums/en-US/sharepointadmin/thread/7efeefce-129e-4a03-9ff7-900d6168952b#b8fc3d8d-6066-41d8-bcf6-09b8c6235dfahttp://social.technet.microsoft.com/Forums/en-US/sharepointadmin/thread/7efeefce-129e-4a03-9ff7-900d6168952b#b8fc3d8d-6066-41d8-bcf6-09b8c6235dfaLu Zou-MSFThttp://social.technet.microsoft.com/Profile/en-US/?user=Lu%20Zou-MSFTMOSS event ID 3351 Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON' Hi<br><br>Could you check the account name of the application pool of the portal site again and do the steps in the article below to see if this can work?<br><br><a href="http://technet.microsoft.com/en-us/library/cc561068.aspx">http://technet.microsoft.com/en-us/library/cc561068.aspx</a><br><br>Lu ZouTue, 17 Feb 2009 11:04:46 Z2009-02-17T11:04:46Zhttp://social.technet.microsoft.com/Forums/en-US/sharepointadmin/thread/7efeefce-129e-4a03-9ff7-900d6168952b#c2b8e575-0e43-4ba6-bbc9-22c0f87f4db0http://social.technet.microsoft.com/Forums/en-US/sharepointadmin/thread/7efeefce-129e-4a03-9ff7-900d6168952b#c2b8e575-0e43-4ba6-bbc9-22c0f87f4db0Klemen30http://social.technet.microsoft.com/Profile/en-US/?user=Klemen30MOSS event ID 3351 Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON' All web application accounts are OK. Event ID 3351 pops up at 20:30PM (backup with CA ARC Serve Sharepoint agent), at 1:20AM (backup with STSADM command) and 2:00AM (I can't figure it out what's going on at 2:00AM ?). <br>Both backups are done without any error.<br><br>tnx,<br>klemenFri, 20 Feb 2009 11:47:28 Z2009-02-20T11:47:28Zhttp://social.technet.microsoft.com/Forums/en-US/sharepointadmin/thread/7efeefce-129e-4a03-9ff7-900d6168952b#ce70e33f-ebb4-4645-955a-e37ba51c7778http://social.technet.microsoft.com/Forums/en-US/sharepointadmin/thread/7efeefce-129e-4a03-9ff7-900d6168952b#ce70e33f-ebb4-4645-955a-e37ba51c7778Klemen30http://social.technet.microsoft.com/Profile/en-US/?user=Klemen30MOSS event ID 3351 Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON' Hi,<br><br>Every time I run backup (from central  administration or STSADM or CA ARCServe) event 3351 pops up on web front end server and event 18456 on SQL server. All backups are done without errors.<br>I've tried to update accounts <a href="http://support.microsoft.com/default.aspx/kb/934838">http://support.microsoft.com/default.aspx/kb/934838</a> , but no luck.<br><br>Is there any solution? <br><br>tnx<br>klemen<br>Wed, 25 Feb 2009 08:50:09 Z2009-02-25T08:50:09Zhttp://social.technet.microsoft.com/Forums/en-US/sharepointadmin/thread/7efeefce-129e-4a03-9ff7-900d6168952b#52df57d3-58c7-4eff-bcf7-b429dad946edhttp://social.technet.microsoft.com/Forums/en-US/sharepointadmin/thread/7efeefce-129e-4a03-9ff7-900d6168952b#52df57d3-58c7-4eff-bcf7-b429dad946edKlemen30http://social.technet.microsoft.com/Profile/en-US/?user=Klemen30MOSS event ID 3351 Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'   <p style="margin:0cm 0cm 10pt"><span style="line-height:115%;font-family:'Segoe UI','sans-serif';color:black;font-size:8pt">Hi, Running Windows sharepoint services vss writer service under AD farm account (instead of Local system) is the solution of my issue! I'm so happy :) Tnx, Klemen</span><b> </b></p>Mon, 02 Mar 2009 08:07:48 Z2009-03-02T08:07:48Z