diff --git a/src/PepperDash.Essentials.Core/Routing/Extensions.cs b/src/PepperDash.Essentials.Core/Routing/Extensions.cs
index 66c0dac3..6d3a98fd 100644
--- a/src/PepperDash.Essentials.Core/Routing/Extensions.cs
+++ b/src/PepperDash.Essentials.Core/Routing/Extensions.cs
@@ -97,7 +97,7 @@ namespace PepperDash.Essentials.Core
                 Debug.LogMessage(LogEventLevel.Information, "Device: {destination} is NOT cooling down.  Removing stored route request and routing to source key: {sourceKey}", null, destination.Key, routeRequest.Source.Key);
             }
 
-            destination.ReleaseRoute();
+            destination.ReleaseRoute(destinationPort?.Key ?? string.Empty);
 
             RunRouteRequest(routeRequest);
         }
@@ -125,14 +125,21 @@ namespace PepperDash.Essentials.Core
             videoRoute?.ExecuteRoutes();
         }
 
+        public static void ReleaseRoute(this IRoutingInputs destination)
+        {
+            ReleaseRoute(destination, string.Empty);
+        }
+
         /// <summary>
         /// Will release the existing route on the destination, if it is found in 
         /// RouteDescriptorCollection.DefaultCollection
         /// </summary>
-        /// <param name="destination"></param>
-        public static void ReleaseRoute(this IRoutingInputs destination)
+        /// <param name="destination"></param>       
+        public static void ReleaseRoute(this IRoutingInputs destination, string inputPortKey)
         {
 
+            Debug.LogMessage(LogEventLevel.Information, "Release route for {inputPortKey}", destination, string.IsNullOrEmpty(inputPortKey) ? "auto" : inputPortKey);
+
             if (RouteRequests.TryGetValue(destination.Key, out RouteRequest existingRequest) && destination is IWarmingCooling)
             {
                 var coolingDevice = destination as IWarmingCooling;
@@ -142,7 +149,7 @@ namespace PepperDash.Essentials.Core
 
             RouteRequests.Remove(destination.Key);
 
-            var current = RouteDescriptorCollection.DefaultCollection.RemoveRouteDescriptor(destination);
+            var current = RouteDescriptorCollection.DefaultCollection.RemoveRouteDescriptor(destination, inputPortKey);
             if (current != null)
             {
                 Debug.LogMessage(LogEventLevel.Debug, "Releasing current route: {0}", destination, current.Source.Key);
@@ -162,7 +169,7 @@ namespace PepperDash.Essentials.Core
             // if it's a single signal type, find the route
             if (!signalType.HasFlag(eRoutingSignalType.AudioVideo))
             {
-                var singleTypeRouteDescriptor = new RouteDescriptor(source, destination, signalType);
+                var singleTypeRouteDescriptor = new RouteDescriptor(source, destination, destinationPort, signalType);
                 Debug.LogMessage(LogEventLevel.Debug, "Attempting to build source route from {sourceKey} of type {type}", destination, source.Key, signalType);
 
                 if (!destination.GetRouteToSource(source, null, null, signalType, 0, singleTypeRouteDescriptor, destinationPort, sourcePort))
@@ -179,14 +186,14 @@ namespace PepperDash.Essentials.Core
 
             Debug.LogMessage(LogEventLevel.Debug, "Attempting to build source route from {sourceKey} of type {type}", destination, source.Key);
 
-            var audioRouteDescriptor = new RouteDescriptor(source, destination, eRoutingSignalType.Audio);
+            var audioRouteDescriptor = new RouteDescriptor(source, destination, destinationPort, eRoutingSignalType.Audio);
 
             var audioSuccess = destination.GetRouteToSource(source, null, null, eRoutingSignalType.Audio, 0, audioRouteDescriptor, destinationPort, sourcePort);
 
             if (!audioSuccess)
                 Debug.LogMessage(LogEventLevel.Debug, "Cannot find audio route to {0}", destination, source.Key);
 
-            var videoRouteDescriptor = new RouteDescriptor(source, destination, eRoutingSignalType.Video);
+            var videoRouteDescriptor = new RouteDescriptor(source, destination, destinationPort, eRoutingSignalType.Video);
 
             var videoSuccess = destination.GetRouteToSource(source, null, null, eRoutingSignalType.Video, 0, videoRouteDescriptor, destinationPort, sourcePort);
 
diff --git a/src/PepperDash.Essentials.Core/Routing/RouteDescriptor.cs b/src/PepperDash.Essentials.Core/Routing/RouteDescriptor.cs
index 3abafae4..fa486c07 100644
--- a/src/PepperDash.Essentials.Core/Routing/RouteDescriptor.cs
+++ b/src/PepperDash.Essentials.Core/Routing/RouteDescriptor.cs
@@ -14,19 +14,27 @@ namespace PepperDash.Essentials.Core
     public class RouteDescriptor
 	{
 		public IRoutingInputs Destination { get; private set; }
+
+        public RoutingInputPort InputPort { get; private set; }
+
 		public IRoutingOutputs Source { get; private set; }
 		public eRoutingSignalType SignalType { get; private set; }
 		public List<RouteSwitchDescriptor> Routes { get; private set; }
 
 
-		public RouteDescriptor(IRoutingOutputs source, IRoutingInputs destination, eRoutingSignalType signalType)
+		public RouteDescriptor(IRoutingOutputs source, IRoutingInputs destination, eRoutingSignalType signalType):this(source,destination, null, signalType)
 		{
-			Destination = destination;
-			Source = source;
-			SignalType = signalType;
-			Routes = new List<RouteSwitchDescriptor>();
 		}
 
+        public RouteDescriptor(IRoutingOutputs source, IRoutingInputs destination, RoutingInputPort inputPort, eRoutingSignalType signalType)
+        {
+            Destination = destination;
+            Source = source;
+            SignalType = signalType;
+            InputPort = inputPort;
+            Routes = new List<RouteSwitchDescriptor>();
+        }
+
 		/// <summary>
 		/// Executes all routes described in this collection.  Typically called via
 		/// extension method IRoutingInputs.ReleaseAndMakeRoute()
diff --git a/src/PepperDash.Essentials.Core/Routing/RouteDescriptorCollection.cs b/src/PepperDash.Essentials.Core/Routing/RouteDescriptorCollection.cs
index 8792a123..6c4a5df5 100644
--- a/src/PepperDash.Essentials.Core/Routing/RouteDescriptorCollection.cs
+++ b/src/PepperDash.Essentials.Core/Routing/RouteDescriptorCollection.cs
@@ -37,7 +37,8 @@ namespace PepperDash.Essentials.Core
                 return;
             }
 
-            if (RouteDescriptors.Any(t => t.Destination == descriptor.Destination))
+            if (RouteDescriptors.Any(t => t.Destination == descriptor.Destination)
+                && RouteDescriptors.Any(t => t.Destination == descriptor.Destination && t.InputPort != null && descriptor.InputPort != null && t.InputPort.Key == descriptor.InputPort.Key))
             {
                 Debug.LogMessage(LogEventLevel.Debug, descriptor.Destination,
                     "Route to [{0}] already exists in global routes table", descriptor.Source.Key);
@@ -52,18 +53,33 @@ namespace PepperDash.Essentials.Core
         /// <returns>null if no RouteDescriptor for a destination exists</returns>
         public RouteDescriptor GetRouteDescriptorForDestination(IRoutingInputs destination)
         {
+            Debug.LogMessage(LogEventLevel.Debug, "Getting route descriptor", destination);
+
             return RouteDescriptors.FirstOrDefault(rd => rd.Destination == destination);
         }
 
+        public RouteDescriptor GetRouteDescriptorForDestinationAndInputPort(IRoutingInputs destination, string inputPortKey)
+        {
+            Debug.LogMessage(LogEventLevel.Debug, "Getting route descriptor for {inputPortKey}", destination, string.IsNullOrEmpty(inputPortKey) ? "auto" : inputPortKey);
+            return RouteDescriptors.FirstOrDefault(rd => rd.Destination == destination && rd.InputPort != null && rd.InputPort.Key == inputPortKey);
+        }
+
         /// <summary>
         /// Returns the RouteDescriptor for a given destination AND removes it from collection.
         /// Returns null if no route with the provided destination exists.
         /// </summary>
-        public RouteDescriptor RemoveRouteDescriptor(IRoutingInputs destination)
+        public RouteDescriptor RemoveRouteDescriptor(IRoutingInputs destination, string inputPortKey = "")
         {
-            var descr = GetRouteDescriptorForDestination(destination);
+            Debug.LogMessage(LogEventLevel.Debug, "Removing route descriptor for {inputPortKey}", destination, string.IsNullOrEmpty(inputPortKey) ? "auto" : inputPortKey);
+
+            var descr = string.IsNullOrEmpty(inputPortKey) 
+                ? GetRouteDescriptorForDestination(destination)
+                : GetRouteDescriptorForDestinationAndInputPort(destination, inputPortKey);
             if (descr != null)
                 RouteDescriptors.Remove(descr);
+
+            Debug.LogMessage(LogEventLevel.Debug, "Found route descriptor {routeDescriptor}", destination, descr);
+
             return descr;
         }
     }