diff --git a/com.zsmartsystems.zigbee.dongle.cc2531/src/test/java/com/zsmartsystems/zigbee/dongle/cc2531/Cc2351TestPacket.java b/com.zsmartsystems.zigbee.dongle.cc2531/src/test/java/com/zsmartsystems/zigbee/dongle/cc2531/Cc2351TestPacket.java
index 04b12e575e..8bff37ec7b 100644
--- a/com.zsmartsystems.zigbee.dongle.cc2531/src/test/java/com/zsmartsystems/zigbee/dongle/cc2531/Cc2351TestPacket.java
+++ b/com.zsmartsystems.zigbee.dongle.cc2531/src/test/java/com/zsmartsystems/zigbee/dongle/cc2531/Cc2351TestPacket.java
@@ -111,5 +111,13 @@ public boolean open(int baudRate, FlowControl flowControl) {
         @Override
         public void purgeRxBuffer() {
         }
+
+        @Override
+        public void setDtr(boolean state) {
+        }
+
+        @Override
+        public void setRts(boolean state) {
+        }
     }
 }
diff --git a/com.zsmartsystems.zigbee.dongle.ember/src/test/java/com/zsmartsystems/zigbee/dongle/ember/internal/EmberFirmwareUpdateHandlerTest.java b/com.zsmartsystems.zigbee.dongle.ember/src/test/java/com/zsmartsystems/zigbee/dongle/ember/internal/EmberFirmwareUpdateHandlerTest.java
index aeebbb23d6..bce4616009 100644
--- a/com.zsmartsystems.zigbee.dongle.ember/src/test/java/com/zsmartsystems/zigbee/dongle/ember/internal/EmberFirmwareUpdateHandlerTest.java
+++ b/com.zsmartsystems.zigbee.dongle.ember/src/test/java/com/zsmartsystems/zigbee/dongle/ember/internal/EmberFirmwareUpdateHandlerTest.java
@@ -202,6 +202,14 @@ public boolean open(int baudRate, FlowControl flowControl) {
         public void purgeRxBuffer() {
         }
 
+        @Override
+        public void setDtr(boolean state) {
+        }
+
+        @Override
+        public void setRts(boolean state) {
+        }
+
         public byte[] getOutput() {
             return Arrays.copyOfRange(output, 0, cnt);
         }
diff --git a/com.zsmartsystems.zigbee.dongle.ember/src/test/java/com/zsmartsystems/zigbee/dongle/ember/internal/ash/AshFrameHandlerTest.java b/com.zsmartsystems.zigbee.dongle.ember/src/test/java/com/zsmartsystems/zigbee/dongle/ember/internal/ash/AshFrameHandlerTest.java
index b7008d8a20..26c3a55d65 100644
--- a/com.zsmartsystems.zigbee.dongle.ember/src/test/java/com/zsmartsystems/zigbee/dongle/ember/internal/ash/AshFrameHandlerTest.java
+++ b/com.zsmartsystems.zigbee.dongle.ember/src/test/java/com/zsmartsystems/zigbee/dongle/ember/internal/ash/AshFrameHandlerTest.java
@@ -206,6 +206,14 @@ public boolean open(int baudRate, FlowControl flowControl) {
         public void purgeRxBuffer() {
         }
 
+        @Override
+        public void setDtr(boolean state) {
+        }
+
+        @Override
+        public void setRts(boolean state) {
+        }
+
         public List<Integer> getOutputData() {
             return outputData;
         }
diff --git a/com.zsmartsystems.zigbee.dongle.ember/src/test/java/com/zsmartsystems/zigbee/dongle/ember/internal/spi/SpiFrameHandlerTest.java b/com.zsmartsystems.zigbee.dongle.ember/src/test/java/com/zsmartsystems/zigbee/dongle/ember/internal/spi/SpiFrameHandlerTest.java
index 3570d237a4..c48d586fb9 100644
--- a/com.zsmartsystems.zigbee.dongle.ember/src/test/java/com/zsmartsystems/zigbee/dongle/ember/internal/spi/SpiFrameHandlerTest.java
+++ b/com.zsmartsystems.zigbee.dongle.ember/src/test/java/com/zsmartsystems/zigbee/dongle/ember/internal/spi/SpiFrameHandlerTest.java
@@ -354,5 +354,13 @@ public boolean open(int baudRate, FlowControl flowControl) {
         @Override
         public void purgeRxBuffer() {
         }
+
+        @Override
+        public void setDtr(boolean state) {
+        }
+
+        @Override
+        public void setRts(boolean state) {
+        }
     }
 }
diff --git a/com.zsmartsystems.zigbee.dongle.telegesis/src/test/java/com/zsmartsystems/zigbee/dongle/telegesis/internal/TelegesisFirmwareUpdateHandlerTest.java b/com.zsmartsystems.zigbee.dongle.telegesis/src/test/java/com/zsmartsystems/zigbee/dongle/telegesis/internal/TelegesisFirmwareUpdateHandlerTest.java
index b88e073a95..1fd848aa91 100644
--- a/com.zsmartsystems.zigbee.dongle.telegesis/src/test/java/com/zsmartsystems/zigbee/dongle/telegesis/internal/TelegesisFirmwareUpdateHandlerTest.java
+++ b/com.zsmartsystems.zigbee.dongle.telegesis/src/test/java/com/zsmartsystems/zigbee/dongle/telegesis/internal/TelegesisFirmwareUpdateHandlerTest.java
@@ -203,6 +203,14 @@ public boolean open(int baudRate, FlowControl flowControl) {
         public void purgeRxBuffer() {
         }
 
+        @Override
+        public void setDtr(boolean state) {
+        }
+
+        @Override
+        public void setRts(boolean state) {
+        }
+
         public byte[] getOutput() {
             return Arrays.copyOfRange(output, 0, cnt);
         }
diff --git a/com.zsmartsystems.zigbee.dongle.telegesis/src/test/java/com/zsmartsystems/zigbee/dongle/telegesis/internal/TelegesisFrameHandlerTest.java b/com.zsmartsystems.zigbee.dongle.telegesis/src/test/java/com/zsmartsystems/zigbee/dongle/telegesis/internal/TelegesisFrameHandlerTest.java
index ec42a6593a..7903006d07 100644
--- a/com.zsmartsystems.zigbee.dongle.telegesis/src/test/java/com/zsmartsystems/zigbee/dongle/telegesis/internal/TelegesisFrameHandlerTest.java
+++ b/com.zsmartsystems.zigbee.dongle.telegesis/src/test/java/com/zsmartsystems/zigbee/dongle/telegesis/internal/TelegesisFrameHandlerTest.java
@@ -328,5 +328,13 @@ public boolean open(int baudRate, FlowControl flowControl) {
         @Override
         public void purgeRxBuffer() {
         }
+
+        @Override
+        public void setDtr(boolean state) {
+        }
+
+        @Override
+        public void setRts(boolean state) {
+        }
     }
 }
diff --git a/com.zsmartsystems.zigbee.dongle.xbee/src/test/java/com/zsmartsystems/zigbee/dongle/xbee/internal/XBeeFrameHandlerTest.java b/com.zsmartsystems.zigbee.dongle.xbee/src/test/java/com/zsmartsystems/zigbee/dongle/xbee/internal/XBeeFrameHandlerTest.java
index 3282366338..8b6d21b033 100644
--- a/com.zsmartsystems.zigbee.dongle.xbee/src/test/java/com/zsmartsystems/zigbee/dongle/xbee/internal/XBeeFrameHandlerTest.java
+++ b/com.zsmartsystems.zigbee.dongle.xbee/src/test/java/com/zsmartsystems/zigbee/dongle/xbee/internal/XBeeFrameHandlerTest.java
@@ -151,5 +151,13 @@ public boolean open(int baudRate, FlowControl flowControl) {
         @Override
         public void purgeRxBuffer() {
         }
+
+        @Override
+        public void setDtr(boolean state) {
+        }
+
+        @Override
+        public void setRts(boolean state) {
+        }
     }
 }
diff --git a/com.zsmartsystems.zigbee.dongle.zstack/src/main/java/com/zsmartsystems/zigbee/dongle/zstack/ZigBeeDongleZstack.java b/com.zsmartsystems.zigbee.dongle.zstack/src/main/java/com/zsmartsystems/zigbee/dongle/zstack/ZigBeeDongleZstack.java
index 449885131f..c8445741ec 100644
--- a/com.zsmartsystems.zigbee.dongle.zstack/src/main/java/com/zsmartsystems/zigbee/dongle/zstack/ZigBeeDongleZstack.java
+++ b/com.zsmartsystems.zigbee.dongle.zstack/src/main/java/com/zsmartsystems/zigbee/dongle/zstack/ZigBeeDongleZstack.java
@@ -241,7 +241,7 @@ public ZigBeeStatus initialize() {
         ZstackNetworkInitialisation netInitialiser = new ZstackNetworkInitialisation(frameHandler);
         netInitialiser.setMagicNumber(magicNumber);
 
-        netInitialiser.initializeNcp(false);
+        netInitialiser.initializeNcp(false, serialPort);
 
         ZstackNcp ncp = getZstackNcp();
 
@@ -296,7 +296,7 @@ public ZigBeeStatus startup(boolean reinitialize) {
         netInitialiser.setMagicNumber(magicNumber);
         if (reinitialize) {
             logger.debug("Reinitialising ZStack NCP network.");
-            netInitialiser.initializeNcp(true);
+            netInitialiser.initializeNcp(true, serialPort);
 
             if (deviceType == DeviceType.COORDINATOR) {
                 netInitialiser.formNetwork();
diff --git a/com.zsmartsystems.zigbee.dongle.zstack/src/main/java/com/zsmartsystems/zigbee/dongle/zstack/internal/ZstackNetworkInitialisation.java b/com.zsmartsystems.zigbee.dongle.zstack/src/main/java/com/zsmartsystems/zigbee/dongle/zstack/internal/ZstackNetworkInitialisation.java
index fd3710e7fa..a8792bad13 100644
--- a/com.zsmartsystems.zigbee.dongle.zstack/src/main/java/com/zsmartsystems/zigbee/dongle/zstack/internal/ZstackNetworkInitialisation.java
+++ b/com.zsmartsystems.zigbee.dongle.zstack/src/main/java/com/zsmartsystems/zigbee/dongle/zstack/internal/ZstackNetworkInitialisation.java
@@ -7,24 +7,23 @@
  */
 package com.zsmartsystems.zigbee.dongle.zstack.internal;
 
-import java.util.concurrent.ExecutionException;
-import java.util.concurrent.Future;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.TimeoutException;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
 import com.zsmartsystems.zigbee.ZigBeeStatus;
 import com.zsmartsystems.zigbee.dongle.zstack.ZstackNcp;
 import com.zsmartsystems.zigbee.dongle.zstack.api.ZstackFrameResponse;
 import com.zsmartsystems.zigbee.dongle.zstack.api.ZstackResponseCode;
-import com.zsmartsystems.zigbee.dongle.zstack.api.sys.ZstackResetType;
 import com.zsmartsystems.zigbee.dongle.zstack.api.sys.ZstackSysResetIndAreq;
 import com.zsmartsystems.zigbee.dongle.zstack.api.sys.ZstackZdoState;
 import com.zsmartsystems.zigbee.dongle.zstack.api.util.ZstackUtilGetDeviceInfoSrsp;
 import com.zsmartsystems.zigbee.dongle.zstack.api.zdo.ZstackZdoStateChangeIndAreq;
 import com.zsmartsystems.zigbee.transport.DeviceType;
+import com.zsmartsystems.zigbee.transport.ZigBeePort;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.Future;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
 
 /**
  * This class provides utility functions to establish a ZStack ZigBee network
@@ -91,20 +90,16 @@ public void setMagicNumber(int magicNumber) {
      * The dongle is not reset completely, thus allowing it to be placed back into the previous network.
      *
      * @param initialize set to true to reset the dongle and erase all current network settings
+     * @param serialPort
      */
-    public ZigBeeStatus initializeNcp(boolean initialize) {
+    public ZigBeeStatus initializeNcp(boolean initialize, ZigBeePort serialPort) {
         logger.debug("ZStack Initialisation: Initialise");
         ZstackNcp ncp = new ZstackNcp(protocolHandler);
 
-        ZstackSysResetIndAreq resetResponse = ncp.resetNcp(ZstackResetType.SERIAL_BOOTLOADER);
-        logger.debug("ZStack Initialisation: Reset response {}", resetResponse);
-
-        if (resetResponse == null) {
-            // The reset failed - assume we're in the bootloader and try and exit
-            if (exitBootloader() == false) {
-                logger.debug("ZStack Initialisation: Failed to exit bootloader");
-                return ZigBeeStatus.COMMUNICATION_ERROR;
-            }
+        // The reset failed - assume we're in the bootloader and try and exit
+        if (exitBootloader(serialPort) == false) {
+            logger.debug("ZStack Initialisation: Failed to exit bootloader");
+            return ZigBeeStatus.COMMUNICATION_ERROR;
         }
 
         if (initialize) {
@@ -194,20 +189,38 @@ public ZigBeeStatus startNetwork() {
      * Attempts to exit the bootloader by sending the "magic number" and waiting for the {@link ZstackSysResetIndAreq}
      * to be received to confirm that the NCP application firmware has started.
      *
+     * https://www.ti.com/lit/an/swra466d/swra466d.pdf
+     * https://www.ti.com/lit/ug/swcu185d/swcu185d.pdf
+     *
      * @return true if the {@link ZstackSysResetIndAreq} was received, otherwise false
+     * @param serialPort Serial port
      */
-    private boolean exitBootloader() {
-        Future<ZstackFrameResponse> waiter = protocolHandler.waitForEvent(ZstackSysResetIndAreq.class);
+    private boolean exitBootloader(ZigBeePort serialPort) {
+        // FIXME this does not work in the OpenHAB binding, as it seems their write() implementation blocks
+        /*
         protocolHandler.sendRaw(magicNumber);
+        if (waitForBoot("Magicnumber")) {
+            return true;
+        }
+         */
 
+        serialPort.setDtr(false);
+
+        serialPort.setRts(false);
+        serialPort.setRts(true);
+        serialPort.setRts(false);
+
+        return waitForBoot("Hardware reset");
+    }
+
+    private boolean waitForBoot(String resetMode) {
+        Future<ZstackFrameResponse> waiter = protocolHandler.waitForEvent(ZstackSysResetIndAreq.class);
         try {
             ZstackFrameResponse response = waiter.get(BOOTLOAD_TIMEOUT, TimeUnit.MILLISECONDS);
-            logger.debug("ZStack Initialisation: Bootloader reset response {}", response);
-
+            logger.debug("ZStack Initialisation: Bootloader reset via {} response {}", resetMode, response);
             return true;
         } catch (InterruptedException | ExecutionException | TimeoutException e) {
-            logger.debug("ZStack Initialisation: Bootloader reset failed");
-
+            logger.debug("ZStack Initialisation: Bootloader reset via {} failed", resetMode, e);
             return false;
         }
     }
diff --git a/com.zsmartsystems.zigbee.dongle.zstack/src/main/java/com/zsmartsystems/zigbee/dongle/zstack/internal/ZstackProtocolHandler.java b/com.zsmartsystems.zigbee.dongle.zstack/src/main/java/com/zsmartsystems/zigbee/dongle/zstack/internal/ZstackProtocolHandler.java
index ee4b94d999..7ad1b59176 100644
--- a/com.zsmartsystems.zigbee.dongle.zstack/src/main/java/com/zsmartsystems/zigbee/dongle/zstack/internal/ZstackProtocolHandler.java
+++ b/com.zsmartsystems.zigbee.dongle.zstack/src/main/java/com/zsmartsystems/zigbee/dongle/zstack/internal/ZstackProtocolHandler.java
@@ -519,7 +519,7 @@ public ZstackTransaction sendTransaction(ZstackTransaction transaction) {
             futureResponse.get(TIMEOUT, TimeUnit.MILLISECONDS);
         } catch (InterruptedException | TimeoutException | ExecutionException e) {
             futureResponse.cancel(true);
-            logger.debug("ZSTACK interrupted in sendTransaction for {}", transaction);
+            logger.debug("ZSTACK interrupted in sendTransaction for {}", transaction, e);
         }
 
         return transaction;
diff --git a/com.zsmartsystems.zigbee.dongle.zstack/src/test/java/com/zsmartsystems/zigbee/dongle/zstack/internal/ZstackProtocolHandlerTest.java b/com.zsmartsystems.zigbee.dongle.zstack/src/test/java/com/zsmartsystems/zigbee/dongle/zstack/internal/ZstackProtocolHandlerTest.java
index 3eefffc8bb..1998d7d20e 100644
--- a/com.zsmartsystems.zigbee.dongle.zstack/src/test/java/com/zsmartsystems/zigbee/dongle/zstack/internal/ZstackProtocolHandlerTest.java
+++ b/com.zsmartsystems.zigbee.dongle.zstack/src/test/java/com/zsmartsystems/zigbee/dongle/zstack/internal/ZstackProtocolHandlerTest.java
@@ -150,6 +150,14 @@ public boolean open(int baudRate, FlowControl flowControl) {
         public void purgeRxBuffer() {
         }
 
+        @Override
+        public void setDtr(boolean state) {
+        }
+
+        @Override
+        public void setRts(boolean state) {
+        }
+
         public List<Integer> getOutputData() {
             return outputData;
         }
diff --git a/com.zsmartsystems.zigbee.serial/src/main/java/com/zsmartsystems/zigbee/serial/ZigBeeSerialPort.java b/com.zsmartsystems.zigbee.serial/src/main/java/com/zsmartsystems/zigbee/serial/ZigBeeSerialPort.java
index 3a2b61ad77..5bb98901b6 100644
--- a/com.zsmartsystems.zigbee.serial/src/main/java/com/zsmartsystems/zigbee/serial/ZigBeeSerialPort.java
+++ b/com.zsmartsystems.zigbee.serial/src/main/java/com/zsmartsystems/zigbee/serial/ZigBeeSerialPort.java
@@ -273,19 +273,21 @@ public void purgeRxBuffer() {
         }
     }
 
-    public boolean setDtr(boolean state) {
+    @Override
+    public void setDtr(boolean state) {
         try {
-            return serialPort.setDTR(state);
+            serialPort.setDTR(state);
         } catch (SerialPortException e) {
-            return false;
+            logger.warn("Could not set DTR to {} on {}", state, this.portName, e);
         }
     }
 
-    public boolean setRts(boolean state) {
+    @Override
+    public void setRts(boolean state) {
         try {
-            return serialPort.setRTS(state);
+            serialPort.setRTS(state);
         } catch (SerialPortException e) {
-            return false;
+            logger.warn("Could not set RTS to {} on {}", state, this.portName, e);
         }
     }
 }
\ No newline at end of file
diff --git a/com.zsmartsystems.zigbee/src/main/java/com/zsmartsystems/zigbee/transport/ZigBeePort.java b/com.zsmartsystems.zigbee/src/main/java/com/zsmartsystems/zigbee/transport/ZigBeePort.java
index f7cc20cac0..b25fe2a3f1 100644
--- a/com.zsmartsystems.zigbee/src/main/java/com/zsmartsystems/zigbee/transport/ZigBeePort.java
+++ b/com.zsmartsystems.zigbee/src/main/java/com/zsmartsystems/zigbee/transport/ZigBeePort.java
@@ -85,6 +85,16 @@ public interface ZigBeePort {
      */
     void purgeRxBuffer();
 
+    /**
+     * Set DTR on Port
+     */
+    void setDtr(boolean state);
+
+    /**
+     * Set DTS on Port
+     */
+    void setRts(boolean state);
+
     /**
      * Enumeration of flow control options
      */