diff --git a/src/ATBAPP/ATBDeviceControllerPlugin.cpp b/src/ATBAPP/ATBDeviceControllerPlugin.cpp
index 9e1f9eb..3727576 100644
--- a/src/ATBAPP/ATBDeviceControllerPlugin.cpp
+++ b/src/ATBAPP/ATBDeviceControllerPlugin.cpp
@@ -87,9 +87,10 @@ PLUGIN_STATE ATBDeviceControllerPlugin::initDCPlugin(QObject *eventReceiver, con
     if (this->isMaster) {
         // open serial port
         hw->dc_openSerial(5, "115200", this->serialPortName, 1);
-        hw->dc_autoRequest(true);
     }
 
+    hw->dc_autoRequest(true);
+
     hw->dc_setNewCustomerNumber(PTUSystem::readCustomerNumber());
     hw->dc_setNewMachineNumber(PTUSystem::readMachineNumber());
     hw->dc_setNewZone(PTUSystem::readZoneNumber());
@@ -176,20 +177,20 @@ void ATBDeviceControllerPlugin::reset()
 
 void ATBDeviceControllerPlugin::onChangedProgramModeToSELL()
 {
+    hw->dc_autoRequest(true);
     hw->rtc_setDateTime();
     hw->mdb_switchWake(0);   // wakeup MDB components
 }
 
 void ATBDeviceControllerPlugin::onChangedProgramModeToSERVICE()
 {
-    //hw->dc_autoRequest(true);
+    hw->dc_autoRequest(true);
     hw->mdb_switchWake(0);   // wakeup MDB components
 }
 
 void ATBDeviceControllerPlugin::onChangedProgramModeToIDLE()
 {
-    //hw->dc_autoRequest(false);  // <-- TODO: ???
-
+    hw->dc_autoRequest(true);
     this->diag->diagRequest();
     hw->mdb_switchWake(1);