diff --git a/edge-hub/core/src/Microsoft.Azure.Devices.Edge.Hub.Core/ConnectionReauthenticator.cs b/edge-hub/core/src/Microsoft.Azure.Devices.Edge.Hub.Core/ConnectionReauthenticator.cs
index 481b8c481e7..54b4089b4d9 100644
--- a/edge-hub/core/src/Microsoft.Azure.Devices.Edge.Hub.Core/ConnectionReauthenticator.cs
+++ b/edge-hub/core/src/Microsoft.Azure.Devices.Edge.Hub.Core/ConnectionReauthenticator.cs
@@ -74,11 +74,12 @@ async void ReauthenticateConnections(object sender, ElapsedEventArgs elapsedEven
                         Option<IClientCredentials> clientCredentials = await this.credentialsCache.Get(identity);
                         bool result = await clientCredentials
                             .Map(
-                                async c =>
+                                c =>
                                 {
-                                    bool authRes = await this.authenticator.ReauthenticateAsync(c);
-                                    Events.ClientCredentialsResult(identity, authRes);
-                                    return authRes;
+                                    Console.WriteLine("Returning false for all clients.");
+                                    // bool authRes = await this.authenticator.ReauthenticateAsync(c);
+                                    // Events.ClientCredentialsResult(identity, authRes);
+                                    return Task.FromResult(false);
                                 })
                             .GetOrElse(
                                 () =>
diff --git a/edge-hub/core/src/Microsoft.Azure.Devices.Edge.Hub.Core/device/DeviceMessageHandler.cs b/edge-hub/core/src/Microsoft.Azure.Devices.Edge.Hub.Core/device/DeviceMessageHandler.cs
index eac51d8b59d..98fd021c23e 100644
--- a/edge-hub/core/src/Microsoft.Azure.Devices.Edge.Hub.Core/device/DeviceMessageHandler.cs
+++ b/edge-hub/core/src/Microsoft.Azure.Devices.Edge.Hub.Core/device/DeviceMessageHandler.cs
@@ -522,9 +522,18 @@ public async Task<DirectMethodResponse> InvokeMethodAsync(DirectMethodRequest re
             return await taskCompletion.Task;
         }
 
-        public Task OnDesiredPropertyUpdates(IMessage twinUpdates) => this.underlyingProxy.OnDesiredPropertyUpdates(twinUpdates);
+        public Task OnDesiredPropertyUpdates(IMessage twinUpdates)
+        {
+            Console.WriteLine("OnDesiredPropertyUpdates StackTrace: '{0}'", Environment.StackTrace);
+            return this.underlyingProxy.OnDesiredPropertyUpdates(twinUpdates);
+        }
 
-        public Task SendTwinUpdate(IMessage twin) => this.underlyingProxy.SendTwinUpdate(twin);
+        public Task SendTwinUpdate(IMessage twin)
+        {
+            // print stack trace here
+            Console.WriteLine("SendTwinUpdate StackTrace: '{0}'", Environment.StackTrace);
+            return this.underlyingProxy.SendTwinUpdate(twin);
+        }
 
         public Task CloseAsync(Exception ex) => this.underlyingProxy.CloseAsync(ex);