diff --git a/plugins/samplesink/limesdroutput/limesdroutput.cpp b/plugins/samplesink/limesdroutput/limesdroutput.cpp
index 39eabcf5d..94d2a8b7d 100644
--- a/plugins/samplesink/limesdroutput/limesdroutput.cpp
+++ b/plugins/samplesink/limesdroutput/limesdroutput.cpp
@@ -41,7 +41,6 @@ LimeSDROutput::LimeSDROutput(DeviceSinkAPI *deviceAPI) :
     m_limeSDROutputThread(0),
     m_deviceDescription("LimeSDROutput"),
     m_running(false),
-    m_firstConfig(true),
     m_channelAcquired(false)
 {
     m_streamId.handle = 0;
@@ -435,14 +434,10 @@ bool LimeSDROutput::handleMessage(const Message& message)
         MsgConfigureLimeSDR& conf = (MsgConfigureLimeSDR&) message;
         qDebug() << "LimeSDROutput::handleMessage: MsgConfigureLimeSDR";
 
-        if (!applySettings(conf.getSettings(), m_firstConfig))
+        if (!applySettings(conf.getSettings(), conf.getForce()))
         {
             qDebug("LimeSDROutput::handleMessage config error");
         }
-        else
-        {
-            m_firstConfig = false;
-        }
 
         return true;
     }
@@ -693,6 +688,7 @@ bool LimeSDROutput::applySettings(const LimeSDROutputSettings& settings, bool fo
         int fifoSize = std::max(
                 (int) ((settings.m_devSampleRate/(1<<settings.m_log2SoftInterp)) * DeviceLimeSDRShared::m_sampleFifoLengthInSeconds),
                 DeviceLimeSDRShared::m_sampleFifoMinSize);
+        qDebug("LimeSDROutput::applySettings: resize FIFO: %d", fifoSize);
         m_sampleSourceFifo.resize(fifoSize);
     }
 
diff --git a/plugins/samplesink/limesdroutput/limesdroutput.h b/plugins/samplesink/limesdroutput/limesdroutput.h
index 8166e6b85..8f6cb9cee 100644
--- a/plugins/samplesink/limesdroutput/limesdroutput.h
+++ b/plugins/samplesink/limesdroutput/limesdroutput.h
@@ -36,18 +36,21 @@ public:
 
     public:
         const LimeSDROutputSettings& getSettings() const { return m_settings; }
+        bool getForce() const { return m_force; }
 
-        static MsgConfigureLimeSDR* create(const LimeSDROutputSettings& settings)
+        static MsgConfigureLimeSDR* create(const LimeSDROutputSettings& settings, bool force)
         {
-            return new MsgConfigureLimeSDR(settings);
+            return new MsgConfigureLimeSDR(settings, force);
         }
 
     private:
         LimeSDROutputSettings m_settings;
+        bool m_force;
 
-        MsgConfigureLimeSDR(const LimeSDROutputSettings& settings) :
+        MsgConfigureLimeSDR(const LimeSDROutputSettings& settings, bool force) :
             Message(),
-            m_settings(settings)
+            m_settings(settings),
+            m_force(force)
         { }
     };
 
@@ -215,7 +218,6 @@ private:
     QString m_deviceDescription;
     bool m_running;
     DeviceLimeSDRShared m_deviceShared;
-    bool m_firstConfig;
     bool m_channelAcquired;
 
     lms_stream_t m_streamId;
diff --git a/plugins/samplesink/limesdroutput/limesdroutputgui.cpp b/plugins/samplesink/limesdroutput/limesdroutputgui.cpp
index 0ccca38b0..d60d92c02 100644
--- a/plugins/samplesink/limesdroutput/limesdroutputgui.cpp
+++ b/plugins/samplesink/limesdroutput/limesdroutputgui.cpp
@@ -33,6 +33,7 @@ LimeSDROutputGUI::LimeSDROutputGUI(DeviceSinkAPI *deviceAPI, QWidget* parent) :
     m_sampleRate(0),
     m_lastEngineState((DSPDeviceSinkEngine::State)-1),
     m_doApplySettings(true),
+    m_forceSettings(true),
     m_statusCounter(0),
     m_deviceStatusCounter(0)
 {
@@ -74,6 +75,8 @@ LimeSDROutputGUI::LimeSDROutputGUI(DeviceSinkAPI *deviceAPI, QWidget* parent) :
     sprintf(recFileNameCStr, "test_%d.sdriq", m_deviceAPI->getDeviceUID());
 
     connect(&m_inputMessageQueue, SIGNAL(messageEnqueued()), this, SLOT(handleInputMessages()), Qt::QueuedConnection);
+
+    sendSettings();
 }
 
 LimeSDROutputGUI::~LimeSDROutputGUI()
@@ -125,6 +128,7 @@ bool LimeSDROutputGUI::deserialize(const QByteArray& data)
     if (m_settings.deserialize(data))
     {
         displaySettings();
+        m_forceSettings = true;
         sendSettings();
         return true;
     }
@@ -302,8 +306,9 @@ void LimeSDROutputGUI::updateHardware()
     if (m_doApplySettings)
     {
         qDebug() << "LimeSDROutputGUI::updateHardware";
-        LimeSDROutput::MsgConfigureLimeSDR* message = LimeSDROutput::MsgConfigureLimeSDR::create(m_settings);
+        LimeSDROutput::MsgConfigureLimeSDR* message = LimeSDROutput::MsgConfigureLimeSDR::create(m_settings, m_forceSettings);
         m_limeSDROutput->getInputMessageQueue()->push(message);
+        m_forceSettings = false;
         m_updateTimer.stop();
     }
 }
diff --git a/plugins/samplesink/limesdroutput/limesdroutputgui.h b/plugins/samplesink/limesdroutput/limesdroutputgui.h
index 55ebd4d91..2e34a76de 100644
--- a/plugins/samplesink/limesdroutput/limesdroutputgui.h
+++ b/plugins/samplesink/limesdroutput/limesdroutputgui.h
@@ -63,6 +63,7 @@ private:
     quint64 m_deviceCenterFrequency; //!< Center frequency in device
     int m_lastEngineState;
     bool m_doApplySettings;
+    bool m_forceSettings;
     int m_statusCounter;
     int m_deviceStatusCounter;
     MessageQueue m_inputMessageQueue;
diff --git a/plugins/samplesink/limesdroutput/limesdroutputplugin.cpp b/plugins/samplesink/limesdroutput/limesdroutputplugin.cpp
index 14cbff296..1f5bc466e 100644
--- a/plugins/samplesink/limesdroutput/limesdroutputplugin.cpp
+++ b/plugins/samplesink/limesdroutput/limesdroutputplugin.cpp
@@ -30,7 +30,7 @@
 
 const PluginDescriptor LimeSDROutputPlugin::m_pluginDescriptor = {
     QString("LimeSDR Output"),
-    QString("3.6.0"),
+    QString("3.7.4"),
     QString("(c) Edouard Griffiths, F4EXB"),
     QString("https://github.com/f4exb/sdrangel"),
     true,