diff --git a/sdk/Windows/SMXDevice.cpp b/sdk/Windows/SMXDevice.cpp
index 0d7c13e..400c1e3 100644
--- a/sdk/Windows/SMXDevice.cpp
+++ b/sdk/Windows/SMXDevice.cpp
@@ -71,6 +71,8 @@ void SMX::SMXDevice::CloseDevice()
     m_pConnection->Close();
     m_bHaveConfig = false;
     m_bSendConfig = false;
+    m_bSendingConfig = false;
+    m_bWaitingForConfigResponse = false;
 
     CallUpdateCallback(SMXUpdateCallback_Updated);
 }