System.Data.Entity.Core.EntityException: The underlying provider failed on Open. ---> MySql.Data.MySqlClient.MySqlException: Unable to connect to any of the specified MySQL hosts.
   at MySql.Data.MySqlClient.NativeDriver.Open()
   at MySql.Data.MySqlClient.Driver.Open()
   at MySql.Data.MySqlClient.Driver.Create(MySqlConnectionStringBuilder settings)
   at MySql.Data.MySqlClient.MySqlPool.CreateNewPooledConnection()
   at MySql.Data.MySqlClient.MySqlPool.GetPooledConnection()
   at MySql.Data.MySqlClient.MySqlPool.TryToGetDriver()
   at MySql.Data.MySqlClient.MySqlPool.GetConnection()
   at MySql.Data.MySqlClient.MySqlConnection.Open()
   at System.Data.Entity.Infrastructure.Interception.InternalDispatcher`1.Dispatch[TTarget,TInterceptionContext](TTarget target, Action`2 operation, TInterceptionContext interceptionContext, Action`3 executing, Action`3 executed)
   at System.Data.Entity.Infrastructure.Interception.DbConnectionDispatcher.Open(DbConnection connection, DbInterceptionContext interceptionContext)
   at System.Data.Entity.Core.EntityClient.EntityConnection.Open()
   --- End of inner exception stack trace ---
   at System.Data.Entity.Core.EntityClient.EntityConnection.Open()
   at System.Data.Entity.Core.Objects.ObjectContext.EnsureConnection(Boolean shouldMonitorTransactions)
   at System.Data.Entity.Core.Objects.ObjectContext.ExecuteInTransaction[T](Func`1 func, IDbExecutionStrategy executionStrategy, Boolean startLocalTransaction, Boolean releaseConnectionOnSuccess)
   at System.Data.Entity.Core.Objects.ObjectContext.SaveChangesToStore(SaveOptions options, IDbExecutionStrategy executionStrategy, Boolean startLocalTransaction)
   at System.Data.Entity.Core.Objects.ObjectContext.SaveChangesInternal(SaveOptions options, Boolean executeInExistingTransaction)
   at System.Data.Entity.Internal.InternalContext.SaveChanges()
   at TA.Project.Logic.Service.RequestLog.Add(Boolean logRobot, String RequestGUID, DateTime AccessTime, DateTime UnloadTime, String ParentApplication, String ParentItemID, Nullable`1 ParentItemIntID, String Email, String UserIdentity, String UserGuid, Nullable`1 UserKey) in d:\11.TA\111.BasicSolution\40.TA.Project\TA.Project.Logic\TA.Project.Logic.Service\RequestLog.cs:line 135
   at TA.Project.Logic.Service.RequestLog.Add(Boolean logRobot, String RequestGUID, DateTime AccessTime, DateTime UnloadTime) in d:\11.TA\111.BasicSolution\40.TA.Project\TA.Project.Logic\TA.Project.Logic.Service\RequestLog.cs:line 28
   at zCCT_AppControlTower_App_find_nota.LogAdd(Boolean passAjax) in d:\11.TA\111.BasicSolution\40.TA.Project\TA.Project.Logic\TA.Project.Logic.WebSite\Web\Service\project\LawLogic\nota\find\ControlTower.aspx.cs:line 378