diff --git a/SimpleSockets/Client/SimpleSocketTcpSslClient.cs b/SimpleSockets/Client/SimpleSocketTcpSslClient.cs
index ac747dd..834ab8e 100644
--- a/SimpleSockets/Client/SimpleSocketTcpSslClient.cs
+++ b/SimpleSockets/Client/SimpleSocketTcpSslClient.cs
@@ -388,13 +388,19 @@ protected override async void ReceiveCallback(IAsyncResult result)
 			}
 			catch (Exception ex)
 			{
-				DisposeSslStream();
 				RaiseErrorThrown(ex);
-				_mreReceiving.Set();
-				_mreRead.Set();
-				state.Reset();
-				// Receive(state);
+				if (!Disposed)
+				{
+					DisposeSslStream();
+					if (_mreReceiving != null)
+						_mreReceiving.Set();
+					if (_mreRead != null)
+						_mreRead.Set();
+					state.Reset();
+				}
+
 			}
+
 		}
 
 		#endregion
diff --git a/Tests/Test.Sockets.Parallel/TcpSslParallelTests.cs b/Tests/Test.Sockets.Parallel/TcpSslParallelTests.cs
index 17e2f51..c0f8a74 100644
--- a/Tests/Test.Sockets.Parallel/TcpSslParallelTests.cs
+++ b/Tests/Test.Sockets.Parallel/TcpSslParallelTests.cs
@@ -17,7 +17,7 @@ public class TcpSslParallelTests
 
 		private IList<SimpleSocketClient> _clients = new List<SimpleSocketClient>();
 
-		private int _numClients = 25;
+		private int _numClients = 15;
 		private int _numMessages = 1000;
 		private X509Certificate2 _cert;