[C#] MySQL Connector problem

MySql.Data.MySqlClient.MySqlException: Unable to connect to any of the specified MySQL hosts. ---> System.Net.Sockets.SocketException: The attempted operation is not supported for the type of object referenced
   at System.Net.Sockets.Socket.get_ConnectEx()
   at System.Net.Sockets.Socket.BeginConnectEx(EndPoint remoteEP, Boolean flowContext, AsyncCallback callback, Object state)
   at System.Net.Sockets.Socket.BeginConnect(EndPoint remoteEP, AsyncCallback callback, Object state)
   at MySql.Data.Common.StreamCreator.CreateSocketStream(IPAddress ip, UInt32 port, Boolean unix)
   at MySql.Data.Common.StreamCreator.GetStream(UInt32 timeOut)
   at MySql.Data.MySqlClient.NativeDriver.Open()
   --- End of inner exception stack trace ---
   at MySql.Data.MySqlClient.NativeDriver.Open()
   at MySql.Data.MySqlClient.MySqlPool.GetPooledConnection()
   at MySql.Data.MySqlClient.MySqlPool.GetConnection()
   at MySql.Data.MySqlClient.MySqlConnection.Open()
   at _Default.Page_Load(Object sender, EventArgs e) in c:\www\x\Default.aspx.cs:line 17

try
{
	MySqlConnection c = new MySqlConnection("Server=localhost;Uid=user;Password=password;");
	c.Open(); // <-- Här det blir fel
	Response.Write("<pre>" + c.ServerVersion + "</pre>");
	c.Close();
	c.Dispose();
}
catch(Exception exObj)
{
	Response.Write("<pre>" + exObj.ToString() + "</pre>");
}