Google Chrome        36.0.1985.125 (Build oficial 283153) m 
2) ¿Se reproduce el problema en una ventana de incógnito? Control+Mayúsculas+N  
No 
3) Adjunta una captura de la pantalla de tu problema/error/incidencia:     
4) Describe detalladamente el problema:  
Hola. Cuando intento iniciar sesión en ésta página me aparece el siguiente error (mostrado anteriormente en el archivo adjunto) 
Server Error in '/' Application.  
The wait operation timed out  
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.  
Exception Details: System.ComponentModel.Win32Exception: The wait operation timed out  
Source Error:  
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.  
Stack Trace:   
[Win32Exception (0x80004005): The wait operation timed out]  
[SqlException (0x80131904): Timeout expired.  The timeout period elapsed prior to completion of the operation or the server is not responding.] 
   System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction) +392 
   System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose) +815 
   System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady) +4515 
   System.Data.SqlClient.SqlDataReader.TryConsumeMetaData() +61 
   System.Data.SqlClient.SqlDataReader.get_MetaData() +138 
   System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString) +6738869 
   System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, SqlDataReader ds) +6741487 
   System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean asyncWrite) +586 
   System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) +107 
   System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method) +288 
   System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior) +237 
   Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteReader(SqlConnection connection, SqlTransaction transaction, CommandType commandType, String commandText, SqlParameter[] commandParameters, SqlConnectionOwnership connectionOwnership) +647 
   Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteReader(String connectionString, CommandType commandType, String commandText, SqlParameter[] commandParameters) +289 
   Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteReader(String connectionString, String spName, Object[] parameterValues) +133 
   DotNetNuke.Security.Membership.Data.SqlDataProvider.GetUserRoles(Int32 portalID, Int32 userId) +234 
   DotNetNuke.Security.Membership.DNNRoleProvider.GetUserRoles(UserInfo user, Boolean includePrivate) +104 
   DotNetNuke.Entities.Users.Social.UserSocial.get_Roles() +162 
   DotNetNuke.Entities.Users.UserInfo.get_Roles() +95 
   DotNetNuke.Entities.Users.UserInfo.IsInRole(String role) +312 
   DotNetNuke.HttpModules.Membership.MembershipModule.AuthenticateRequest(HttpContextBase context, Boolean allowUnknownExtensinons) +1143 
   System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +80 
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +165  
Version Information: Microsoft .NET Framework Version:4.0.30319; 
ASP.NET Version:4.0.30319.18446   
Espero que puedan ayudarme. Gracias.