diff --git a/ADIS_Csharp/ADIS_Csharp.sln b/ADIS_Csharp/ADIS_Csharp.sln
index f991017..f203fb4 100644
--- a/ADIS_Csharp/ADIS_Csharp.sln
+++ b/ADIS_Csharp/ADIS_Csharp.sln
@@ -13,6 +13,10 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Sync-Ueb03-WaitPool", "Sync
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Sync-Ueb04-NestedMonitor", "Sync-Ueb04-NestedMonitor\Sync-Ueb04-NestedMonitor.csproj", "{839AB456-68F3-4ABC-A0EE-95F08FEFC033}"
 EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Sync-Ueb05-LostSignals", "Sync-Ueb05-LostSignals\Sync-Ueb05-LostSignals.csproj", "{8605252D-7232-4E7A-B1E0-BF273947F3CB}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MqttTest", "MqttTest\MqttTest.csproj", "{EB76DC93-79D0-4837-8A49-D825CDE4C6A3}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -39,6 +43,14 @@ Global
 		{839AB456-68F3-4ABC-A0EE-95F08FEFC033}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{839AB456-68F3-4ABC-A0EE-95F08FEFC033}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{839AB456-68F3-4ABC-A0EE-95F08FEFC033}.Release|Any CPU.Build.0 = Release|Any CPU
+		{8605252D-7232-4E7A-B1E0-BF273947F3CB}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{8605252D-7232-4E7A-B1E0-BF273947F3CB}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{8605252D-7232-4E7A-B1E0-BF273947F3CB}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{8605252D-7232-4E7A-B1E0-BF273947F3CB}.Release|Any CPU.Build.0 = Release|Any CPU
+		{EB76DC93-79D0-4837-8A49-D825CDE4C6A3}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{EB76DC93-79D0-4837-8A49-D825CDE4C6A3}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{EB76DC93-79D0-4837-8A49-D825CDE4C6A3}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{EB76DC93-79D0-4837-8A49-D825CDE4C6A3}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
diff --git a/ADIS_Csharp/Sync-Ueb05-LostSignals/AWait.cs b/ADIS_Csharp/Sync-Ueb05-LostSignals/AWait.cs
index de7d424..476d5ed 100644
--- a/ADIS_Csharp/Sync-Ueb05-LostSignals/AWait.cs
+++ b/ADIS_Csharp/Sync-Ueb05-LostSignals/AWait.cs
@@ -5,12 +5,22 @@ namespace LostSignals {
 
     class AWait : ISynch {
 
+        private object syncRoot = new object();
+
         public void Acquire()
         {
+            lock (syncRoot)
+            {
+                Monitor.Wait(syncRoot);
+            }
         }
 
-        public void Release() 
+        public void Release()
         {
-        }
+            lock (syncRoot)
+            {
+                Monitor.Pulse(syncRoot);
+            }
+}
     }
 }