diff --git a/udpserver.cpp b/udpserver.cpp
index 1b27f21..8b46be9 100644
--- a/udpserver.cpp
+++ b/udpserver.cpp
@@ -250,7 +250,6 @@ void udpServer::controlReceived()
                     deleteConnection(&civClients, current->civClient);
                 }
                 deleteConnection(&controlClients, current);
-                return; // We mustn't do anything else as the connection has now gone.
             }
             break;
         }
@@ -431,8 +430,10 @@ void udpServer::controlReceived()
         // Report current connections:
         emit haveNetworkStatus(QString("<pre>Server connections: Control:%1 CI-V:%2 Audio:%3</pre>").arg(controlClients.size()).arg(civClients.size()).arg(audioClients.size()));
 
-        commonReceived(&controlClients, current, r);
-
+        // Connection "may" have been deleted so check before calling common function.
+        if (current != Q_NULLPTR) {
+            commonReceived(&controlClients, current, r);
+        }
     }
 }
 
diff --git a/wfview.vcxproj b/wfview.vcxproj
index ce4ee99..93967c1 100644
--- a/wfview.vcxproj
+++ b/wfview.vcxproj
@@ -57,7 +57,7 @@
       <ExceptionHandling>Sync</ExceptionHandling>
       <ObjectFileName>release\</ObjectFileName>
       <Optimization>MaxSpeed</Optimization>
-      <PreprocessorDefinitions>_WINDOWS;UNICODE;_UNICODE;WIN32;_ENABLE_EXTENDED_ALIGNED_STORAGE;QT_DEPRECATED_WARNINGS;QCUSTOMPLOT_COMPILE_LIBRARY;OUTSIDE_SPEEX;RANDOM_PREFIX=wf;RTAUDIO;__WINDOWS_WASAPI__;GITSHORT="9a0ea32";HOST="wfview.org";UNAME="build";NDEBUG;QT_NO_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_WINDOWS;UNICODE;_UNICODE;WIN32;_ENABLE_EXTENDED_ALIGNED_STORAGE;QT_DEPRECATED_WARNINGS;QCUSTOMPLOT_COMPILE_LIBRARY;OUTSIDE_SPEEX;RANDOM_PREFIX=wf;__WINDOWS_WASAPI__;GITSHORT="141955b";HOST="wfview.org";UNAME="build";QT_NO_DEBUG;NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <PreprocessToFile>false</PreprocessToFile>
       <ProgramDataBaseFileName></ProgramDataBaseFileName>
       <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
@@ -67,13 +67,12 @@
     <MultiProcessorCompilation>true</MultiProcessorCompilation></ClCompile>
     <Link>
       <AdditionalDependencies>shell32.lib;%(AdditionalDependencies)</AdditionalDependencies>
-      <AdditionalLibraryDirectories>C:\opensslx86\lib;C:\Utils\my_sql\mysql-5.7.25-win32\lib;C:\Utils\postgresqlx86\pgsql\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalLibraryDirectories>C:\opensslx86\lib;C:\Utils\my_sql\mysql-5.6.11-win32\lib;C:\Utils\postgresqlx86\pgsql\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
       <AdditionalOptions>"/MANIFESTDEPENDENCY:type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' publicKeyToken='6595b64144ccf1df' language='*' processorArchitecture='*'" %(AdditionalOptions)</AdditionalOptions>
       <DataExecutionPrevention>true</DataExecutionPrevention>
       <GenerateDebugInformation>false</GenerateDebugInformation>
       <IgnoreImportLibrary>true</IgnoreImportLibrary>
       <LinkIncremental>false</LinkIncremental>
-      <OptimizeReferences>true</OptimizeReferences>
       <OutputFile>$(OutDir)\wfview.exe</OutputFile>
       <RandomizedBaseAddress>true</RandomizedBaseAddress>
       <SubSystem>Windows</SubSystem>
@@ -85,7 +84,7 @@
       <WarningLevel>0</WarningLevel>
     </Midl>
     <ResourceCompile>
-      <PreprocessorDefinitions>_WINDOWS;UNICODE;_UNICODE;WIN32;_ENABLE_EXTENDED_ALIGNED_STORAGE;QT_DEPRECATED_WARNINGS;QCUSTOMPLOT_COMPILE_LIBRARY;OUTSIDE_SPEEX;RANDOM_PREFIX=wf;RTAUDIO;__WINDOWS_WASAPI__;GITSHORT=\"9a0ea32\";HOST=\"wfview.org\";UNAME=\"build\";NDEBUG;QT_NO_DEBUG;QT_MULTIMEDIA_LIB;QT_PRINTSUPPORT_LIB;QT_WIDGETS_LIB;QT_GUI_LIB;QT_SERIALPORT_LIB;QT_NETWORK_LIB;QT_CORE_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_WINDOWS;UNICODE;_UNICODE;WIN32;_ENABLE_EXTENDED_ALIGNED_STORAGE;QT_DEPRECATED_WARNINGS;QCUSTOMPLOT_COMPILE_LIBRARY;OUTSIDE_SPEEX;RANDOM_PREFIX=wf;__WINDOWS_WASAPI__;GITSHORT=\"141955b\";HOST=\"wfview.org\";UNAME=\"build\";QT_NO_DEBUG;QT_MULTIMEDIA_LIB;QT_PRINTSUPPORT_LIB;QT_WIDGETS_LIB;QT_GUI_LIB;QT_SERIALPORT_LIB;QT_NETWORK_LIB;QT_CORE_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ResourceCompile>
   <QtMoc><CompilerFlavor>msvc</CompilerFlavor><Include>./$(Configuration)/moc_predefs.h</Include><ExecutionDescription>Moc'ing %(Identity)...</ExecutionDescription><DynamicSource>output</DynamicSource><QtMocDir>$(Configuration)</QtMocDir><QtMocFileName>moc_%(Filename).cpp</QtMocFileName></QtMoc><QtRcc><Compression>default</Compression><ExecutionDescription>Rcc'ing %(Identity)...</ExecutionDescription><QtRccDir>$(Configuration)</QtRccDir><QtRccFileName>qrc_%(Filename).cpp</QtRccFileName></QtRcc><QtUic><ExecutionDescription>Uic'ing %(Identity)...</ExecutionDescription><QtUicDir>$(ProjectDir)</QtUicDir><QtUicFileName>ui_%(Filename).h</QtUicFileName></QtUic></ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
@@ -99,7 +98,7 @@
       <ExceptionHandling>Sync</ExceptionHandling>
       <ObjectFileName>debug\</ObjectFileName>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>_WINDOWS;UNICODE;_UNICODE;WIN32;_ENABLE_EXTENDED_ALIGNED_STORAGE;QT_DEPRECATED_WARNINGS;QCUSTOMPLOT_COMPILE_LIBRARY;OUTSIDE_SPEEX;RANDOM_PREFIX=wf;RTAUDIO;__WINDOWS_WASAPI__;GITSHORT="9a0ea32";HOST="wfview.org";UNAME="build";%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_WINDOWS;UNICODE;_UNICODE;WIN32;_ENABLE_EXTENDED_ALIGNED_STORAGE;QT_DEPRECATED_WARNINGS;QCUSTOMPLOT_COMPILE_LIBRARY;OUTSIDE_SPEEX;RANDOM_PREFIX=wf;__WINDOWS_WASAPI__;GITSHORT="141955b";HOST="wfview.org";UNAME="build";%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <PreprocessToFile>false</PreprocessToFile>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
       <SuppressStartupBanner>true</SuppressStartupBanner>
@@ -108,7 +107,7 @@
     <MultiProcessorCompilation>true</MultiProcessorCompilation></ClCompile>
     <Link>
       <AdditionalDependencies>shell32.lib;%(AdditionalDependencies)</AdditionalDependencies>
-      <AdditionalLibraryDirectories>C:\opensslx86\lib;C:\Utils\my_sql\mysql-5.7.25-win32\lib;C:\Utils\postgresqlx86\pgsql\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalLibraryDirectories>C:\opensslx86\lib;C:\Utils\my_sql\mysql-5.6.11-win32\lib;C:\Utils\postgresqlx86\pgsql\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
       <AdditionalOptions>"/MANIFESTDEPENDENCY:type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' publicKeyToken='6595b64144ccf1df' language='*' processorArchitecture='*'" %(AdditionalOptions)</AdditionalOptions>
       <DataExecutionPrevention>true</DataExecutionPrevention>
       <GenerateDebugInformation>true</GenerateDebugInformation>
@@ -124,11 +123,10 @@
       <WarningLevel>0</WarningLevel>
     </Midl>
     <ResourceCompile>
-      <PreprocessorDefinitions>_WINDOWS;UNICODE;_UNICODE;WIN32;_ENABLE_EXTENDED_ALIGNED_STORAGE;QT_DEPRECATED_WARNINGS;QCUSTOMPLOT_COMPILE_LIBRARY;OUTSIDE_SPEEX;RANDOM_PREFIX=wf;RTAUDIO;__WINDOWS_WASAPI__;GITSHORT=\"9a0ea32\";HOST=\"wfview.org\";UNAME=\"build\";QT_MULTIMEDIA_LIB;QT_PRINTSUPPORT_LIB;QT_WIDGETS_LIB;QT_GUI_LIB;QT_SERIALPORT_LIB;QT_NETWORK_LIB;QT_CORE_LIB;_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_WINDOWS;UNICODE;_UNICODE;WIN32;_ENABLE_EXTENDED_ALIGNED_STORAGE;QT_DEPRECATED_WARNINGS;QCUSTOMPLOT_COMPILE_LIBRARY;OUTSIDE_SPEEX;RANDOM_PREFIX=wf;__WINDOWS_WASAPI__;GITSHORT=\"141955b\";HOST=\"wfview.org\";UNAME=\"build\";QT_MULTIMEDIA_LIB;QT_PRINTSUPPORT_LIB;QT_WIDGETS_LIB;QT_GUI_LIB;QT_SERIALPORT_LIB;QT_NETWORK_LIB;QT_CORE_LIB;_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ResourceCompile>
   <QtMoc><CompilerFlavor>msvc</CompilerFlavor><Include>./$(Configuration)/moc_predefs.h</Include><ExecutionDescription>Moc'ing %(Identity)...</ExecutionDescription><DynamicSource>output</DynamicSource><QtMocDir>$(Configuration)</QtMocDir><QtMocFileName>moc_%(Filename).cpp</QtMocFileName></QtMoc><QtRcc><Compression>default</Compression><ExecutionDescription>Rcc'ing %(Identity)...</ExecutionDescription><QtRccDir>$(Configuration)</QtRccDir><QtRccFileName>qrc_%(Filename).cpp</QtRccFileName></QtRcc><QtUic><ExecutionDescription>Uic'ing %(Identity)...</ExecutionDescription><QtUicDir>$(ProjectDir)</QtUicDir><QtUicFileName>ui_%(Filename).h</QtUicFileName></QtUic></ItemDefinitionGroup>
   <ItemGroup>
-    <ClCompile Include="rtaudio\RTAudio.cpp" />
     <ClCompile Include="audiohandler.cpp" />
     <ClCompile Include="calibrationwindow.cpp" />
     <ClCompile Include="commhandler.cpp" />
@@ -152,7 +150,6 @@
     <ClCompile Include="wfmain.cpp" />
   </ItemGroup>
   <ItemGroup>
-    <ClInclude Include="rtaudio\RTAUdio.h" />
     <ClInclude Include="opus-tools\src\arch.h" />
     <QtMoc Include="audiohandler.h">
       
diff --git a/wfview.vcxproj.filters b/wfview.vcxproj.filters
index 1c9e103..3e0705b 100644
--- a/wfview.vcxproj.filters
+++ b/wfview.vcxproj.filters
@@ -57,9 +57,6 @@
     </Filter>
   </ItemGroup>
   <ItemGroup>
-    <ClCompile Include="rtaudio\RTAudio.cpp">
-      <Filter>Source Files</Filter>
-    </ClCompile>
     <ClCompile Include="audiohandler.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
@@ -125,9 +122,6 @@
     </ClCompile>
   </ItemGroup>
   <ItemGroup>
-    <ClInclude Include="rtaudio\RTAUdio.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
     <ClInclude Include="opus-tools\src\arch.h">
       <Filter>Header Files</Filter>
     </ClInclude>