I am having this problem also. I am running DNN 4.0.2 on IIS 6
and SQL 2000 Enterprise. The error is occuring for all core
modules, but as far as I can tell it is not happening for any
third-party modules.
Error: Links is currently unavailable. DotNetNuke.Services.Exceptions.ModuleLoadException:
An error has occurred while establishing a connection to the server.
When connecting to SQL Server 2005, this failure may be caused by the
fact that under the default settings SQL Server does not allow remote
connections. (provider: SQL Network Interfaces, error: 26 - Error
Locating Server/Instance Specified) --->
System.Data.SqlClient.SqlException: An error has occurred while
establishing a connection to the server. When connecting to SQL Server
2005, this failure may be caused by the fact that under the default
settings SQL Server does not allow remote connections. (provider: SQL
Network Interfaces, error: 26 - Error Locating Server/Instance
Specified) at
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException
exception, Boolean breakConnection) at
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject
stateObj) at System.Data.SqlClient.TdsParser.Connect(Boolean&
useFailoverPartner, Boolean& failoverDemandDone, String host,
String failoverPartner, String protocol, SqlInternalConnectionTds
connHandler, Int64 timerExpire, Boolean encrypt, Boolean
trustServerCert, Boolean integratedSecurity, SqlConnection
owningObject, Boolean aliasLookup) at
System.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.CreateObject(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.ApplicationBlocks.Data.SqlHelperParameterCache.DiscoverSpParameterSet(SqlConnection
connection, String spName, Boolean includeReturnValueParameter,
Object[] parameterValues) at
Microsoft.ApplicationBlocks.Data.SqlHelperParameterCache.GetSpParameterSetInternal(SqlConnection
connection, String spName, Boolean includeReturnValueParameter) at
Microsoft.ApplicationBlocks.Data.SqlHelperParameterCache.GetSpParameterSet(String
connectionString, String spName, Boolean includeReturnValueParameter)
at
Microsoft.ApplicationBlocks.Data.SqlHelperParameterCache.GetSpParameterSet(String
connectionString, String spName) at
Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteReader(String
connectionString, String spName, Object[] parameterValues) at
DotNetNuke.Modules.Links.SqlDataProvider.GetLinks(Int32 ModuleId) at
DotNetNuke.Modules.Links.LinkController.GetLinks(Int32 ModuleId) at
DotNetNuke.Modules.Links.Links.Page_Load(Object sender, EventArgs e)
--- End of inner exception stack trace ---
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