ObjectDisposedException: Cannot access a disposed object. Object name: 'System.Net.Sockets.Socket'.

[pengweiqhca]

ObjectDisposedException: Cannot access a disposed object.
Object name: 'System.Net.Sockets.Socket'.
System.Net.Sockets.Socket.EndConnect(IAsyncResult asyncResult)

MySqlException: Connect Timeout expired.
MySqlConnector.Core.ServerSession.OpenTcpSocketAsync(ConnectionSettings cs, ILoadBalancer loadBalancer, IOBehavior ioBehavior, CancellationToken cancellationToken)

MySql.Data.MySqlClient.MySqlException (0x80004005): Connect Timeout expired. ---> System.ObjectDisposedException: Cannot access a disposed object.
Object name: 'System.Net.Sockets.Socket'.
   at System.Net.Sockets.Socket.EndConnect(IAsyncResult asyncResult)
   at System.Net.Sockets.TcpClient.EndConnect(IAsyncResult asyncResult)
   at System.Net.Sockets.TcpClient.<>c.<ConnectAsync>b__27_1(IAsyncResult asyncResult)
   at System.Threading.Tasks.TaskFactory`1.FromAsyncCoreLogic(IAsyncResult iar, Func`2 endFunction, Action`1 endAction, Task`1 promise, Boolean requiresSynchronization)
--- End of stack trace from previous location where exception was thrown ---
   at MySqlConnector.Core.ServerSession.OpenTcpSocketAsync(ConnectionSettings cs, ILoadBalancer loadBalancer, IOBehavior ioBehavior, CancellationToken cancellationToken) in C:\projects\mysqlconnector\src\MySqlConnector\Core\ServerSession.cs:line 714
   at MySqlConnector.Core.ServerSession.OpenTcpSocketAsync(ConnectionSettings cs, ILoadBalancer loadBalancer, IOBehavior ioBehavior, CancellationToken cancellationToken)
   at MySqlConnector.Core.ServerSession.ConnectAsync(ConnectionSettings cs, ILoadBalancer loadBalancer, IOBehavior ioBehavior, CancellationToken cancellationToken) in C:\projects\mysqlconnector\src\MySqlConnector\Core\ServerSession.cs:line 249
   at MySqlConnector.Core.ConnectionPool.GetSessionAsync(MySqlConnection connection, IOBehavior ioBehavior, CancellationToken cancellationToken) in C:\projects\mysqlconnector\src\MySqlConnector\Core\ConnectionPool.cs:line 112
   at MySqlConnector.Core.ConnectionPool.GetSessionAsync(MySqlConnection connection, IOBehavior ioBehavior, CancellationToken cancellationToken) in C:\projects\mysqlconnector\src\MySqlConnector\Core\ConnectionPool.cs:line 141
   at MySql.Data.MySqlClient.MySqlConnection.CreateSessionAsync(Nullable`1 ioBehavior, CancellationToken cancellationToken) in C:\projects\mysqlconnector\src\MySqlConnector\MySql.Data.MySqlClient\MySqlConnection.cs:line 399
   at MySql.Data.MySqlClient.MySqlConnection.OpenAsync(Nullable`1 ioBehavior, CancellationToken cancellationToken) in C:\projects\mysqlconnector\src\MySqlConnector\MySql.Data.MySqlClient\MySqlConnection.cs:line 171

[bgrainger]

MySqlException: Connect Timeout expired.

This is a normal and expected exception when MySqlConnector can't establish a connection to your MySQL Server.

• Check that the details in your connection string are correct.
• Check that the server's port is open in its firewall.
• You may need to adjust ConnectionTimeout in your connection string.
• Make sure you haven't exceeded MaximumPoolSize concurrent open connections.

[MaceWindu]

Is it expected to trigger ObjectDisposedException on connection timeout?

[bgrainger]

There may be an ObjectDisposedException as the inner exception, but the primary exception will be MySqlException. Throwing an ObjectDisposedException directly is unexpected.