Index: Network/DicomClient.cs
===================================================================
--- Network/DicomClient.cs	(revision 10084)
+++ Network/DicomClient.cs	(working copy)
@@ -213,6 +213,18 @@
             }
         }
 
+        public void Abort()
+        {
+            try
+            {
+                SendAssociateAbort(DicomAbortSource.ServiceUser, DicomAbortReason.NotSpecified);
+            }
+            finally
+            {
+               CloseNetwork();
+            }
+        }
+
         private void ConnectTLS()
         {
             _closedOnError = false;
@@ -510,7 +522,7 @@
             if (disposing)
             {
                 // Dispose of other Managed objects, ie
-                CloseNetwork();
+                Abort();
             }
             // FREE UNMANAGED RESOURCES
             _disposed = true;
Index: Network/NetworkBase.cs
===================================================================
--- Network/NetworkBase.cs	(revision 10084)
+++ Network/NetworkBase.cs	(working copy)
@@ -237,7 +237,7 @@
             {
                 if (!Thread.CurrentThread.Equals(_thread))
                 {
-                    _thread.Join();
+                    _thread.Join(2500);
                     _thread = null;
                 }
             }
Index: Network/Scu/ScuBase.cs
===================================================================
--- Network/Scu/ScuBase.cs	(revision 10084)
+++ Network/Scu/ScuBase.cs	(working copy)
@@ -281,7 +281,14 @@
 			}
 			return iodList;
 		}
-	
+	    
+        public void Abort()
+        {
+            if (_dicomClient != null)
+            {
+                _dicomClient.Abort();
+            }
+        }
 		#endregion
 
 		#region Protected Methods...
@@ -663,48 +670,51 @@
 		}
 		#endregion
 
-	}
+    }
 
-	/// <summary>
-	/// 
-	/// </summary>
-	public enum ScuOperationStatus
-	{
-		/// <summary>
-		/// 
-		/// </summary>
-		NotRunning = 0,
-		/// <summary>
-		/// 
-		/// </summary>
-		Running = 1,
-		/// <summary>
-		/// Dimse timeout expired.
-		/// </summary>
-		TimeoutExpired = 2,
-		/// <summary>
-		/// The scu operation was cancelled.
-		/// </summary>
-		Canceled = 3,
-		///<summary>
-		/// A failure occured
-		/// </summary>
-		Failed = 4,
-		///<summary>
-		/// A connection failure occured
-		/// </summary>
-		ConnectFailed = 5,
-		/// <summary>
-		/// The association was rejected.
-		/// </summary>
-		AssociationRejected = 6,
-		/// <summary>
-		/// An unexpected network error occurred.
-		/// </summary>
-		NetworkError = 7,
-		/// <summary>
-		/// An unexpected message was received and the association was aborted.
-		/// </summary>
-		UnexpectedMessage = 8
-	}
+    #region ScuOperationStatus Enum
+    /// <summary>
+    /// 
+    /// </summary>
+    public enum ScuOperationStatus
+    {
+        /// <summary>
+        /// 
+        /// </summary>
+        NotRunning = 0,
+        /// <summary>
+        /// 
+        /// </summary>
+        Running = 1,
+        /// <summary>
+        /// Dimse timeout expired.
+        /// </summary>
+        TimeoutExpired = 2,
+        /// <summary>
+        /// The scu operation was cancelled.
+        /// </summary>
+        Canceled = 3,
+        ///<summary>
+        /// A failure occured
+        /// </summary>
+        Failed = 4,
+        ///<summary>
+        /// A connection failure occured
+        /// </summary>
+        ConnectFailed = 5,
+        /// <summary>
+        /// The association was rejected.
+        /// </summary>
+        AssociationRejected = 6,
+        /// <summary>
+        /// An unexpected network error occurred.
+        /// </summary>
+        NetworkError = 7,
+        /// <summary>
+        /// An unexpected message was received and the association was aborted.
+        /// </summary>
+        UnexpectedMessage = 8
+    }
+
+    #endregion
 }