Login failed for user 'username' , Error: 18456, Severity: 14, State:

Hi guys,

I get below error when I try to logged into my web site.
Error: Login failed for user 'username'

Below is the event log at that time.
Error: 18456, Severity: 14, State: 8.

my web site working fine since last 5 months but from yesterday i was
getting this error.
the thing is, the behavior of this error is not consistent some time
this error is occur and some time its not happen.

I appreciate your help & suggestions.

Below is the strack trace:
Stack Trace: at
System.Data.SqlClient.SqlInternalConnection.OnError(SqlExcep tion
exception, Boolean breakConnection)
at
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(Tds ParserStateObject
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.AttemptOneLog in(ServerInfo
serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64
timerExpire, SqlConnection owningObject)
at
System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailov er(String
host, String newPassword, Boolean redirectedUserInstance,
SqlConnection owningObject, SqlConnectionString connectionOptions,
Int64 timerStart)
at
System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnli st(SqlConnection
owningObject, SqlConnectionString connectionOptions, String
newPassword, Boolean redirectedUserInstance)
at
System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConne ctionPoolIdentity
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.CreatePooledCon nection(DbConnection
owningConnection, DbConnectionPool pool, DbConnectionOptions options)
at System.Data.ProviderBase.DbConnectionPool.CreateObject(DbCon nection
owningObject)
at
System.Data.ProviderBase.DbConnectionPool.UserCreateRequest( DbConnection
owningObject)
at
System.Data.ProviderBase.DbConnectionPool.GetConnection(DbCo nnection
owningObject)
at
System.Data.ProviderBase.DbConnectionFactory.GetConnection(D bConnection
owningConnection)
at
System.Data.ProviderBase.DbConnectionClosed.OpenConnection(D bConnection
outerConnection, DbConnectionFactory connectionFactory)
at System.Data.SqlClient.SqlConnection.Open()
at User..ctor(String vzid)


thanks in advance,
prashant
Prashant [ Do, 10 April 2008 22:51 ] [ ID #1939420 ]
Microsoft » microsoft.public.dotnet.framework.aspnet » Login failed for user 'username' , Error: 18456, Severity: 14, State:

Vorheriges Thema: Vista Ultimate and IIS Windows Authentication
Nächstes Thema: ASP.NET MVC RouteTable question