diff --git a/com.zsmartsystems.zigbee.dongle.ember/src/main/java/com/zsmartsystems/zigbee/dongle/ember/ZigBeeDongleEzsp.java b/com.zsmartsystems.zigbee.dongle.ember/src/main/java/com/zsmartsystems/zigbee/dongle/ember/ZigBeeDongleEzsp.java
index 8a1c11046..214592eb5 100644
--- a/com.zsmartsystems.zigbee.dongle.ember/src/main/java/com/zsmartsystems/zigbee/dongle/ember/ZigBeeDongleEzsp.java
+++ b/com.zsmartsystems.zigbee.dongle.ember/src/main/java/com/zsmartsystems/zigbee/dongle/ember/ZigBeeDongleEzsp.java
@@ -1083,11 +1083,12 @@ public ZigBeeStatus setZigBeeChannel(ZigBeeChannel channel) {
         }
         if (networkStateUp) {
             EmberNcp ncp = getEmberNcp();
-            ncp.setRadioChannel(channel);
+            return ncp.setRadioChannel(channel) == EmberStatus.EMBER_SUCCESS ? ZigBeeStatus.SUCCESS
+                    : ZigBeeStatus.BAD_RESPONSE;
         } else {
             networkParameters.setRadioChannel(channel.getChannel());
+            return ZigBeeStatus.SUCCESS;
         }
-        return ZigBeeStatus.SUCCESS;
     }
 
     @Override
diff --git a/com.zsmartsystems.zigbee.dongle.ember/src/test/java/com/zsmartsystems/zigbee/dongle/ember/ZigBeeDongleEzspTest.java b/com.zsmartsystems.zigbee.dongle.ember/src/test/java/com/zsmartsystems/zigbee/dongle/ember/ZigBeeDongleEzspTest.java
index bdc7ffc56..bbefeaee9 100644
--- a/com.zsmartsystems.zigbee.dongle.ember/src/test/java/com/zsmartsystems/zigbee/dongle/ember/ZigBeeDongleEzspTest.java
+++ b/com.zsmartsystems.zigbee.dongle.ember/src/test/java/com/zsmartsystems/zigbee/dongle/ember/ZigBeeDongleEzspTest.java
@@ -415,11 +415,18 @@ public EmberNcp getEmberNcp() {
     }
 
     @Test
-    public void setZigBeeChannel() {
+    public void setZigBeeChannelOk() {
         System.out.println("--- " + Thread.currentThread().getStackTrace()[1].getMethodName());
-        ZigBeeDongleEzsp dongle = new ZigBeeDongleEzsp(null);
 
-        assertEquals(ZigBeeStatus.INVALID_ARGUMENTS, dongle.setZigBeeChannel(ZigBeeChannel.CHANNEL_03));
+        final EmberNcp ncp = Mockito.mock(EmberNcp.class);
+        ZigBeeDongleEzsp dongle = new ZigBeeDongleEzsp(null) {
+            @Override
+            public EmberNcp getEmberNcp() {
+                return ncp;
+            }
+        };
+
+        Mockito.when(ncp.setRadioChannel(ArgumentMatchers.any())).thenReturn(EmberStatus.EMBER_SUCCESS);
 
         assertEquals(ZigBeeStatus.SUCCESS, dongle.setZigBeeChannel(ZigBeeChannel.CHANNEL_11));
         assertEquals(ZigBeeChannel.CHANNEL_11, dongle.getZigBeeChannel());
@@ -428,13 +435,31 @@ public void setZigBeeChannel() {
         assertEquals(ZigBeeChannel.CHANNEL_24, dongle.getZigBeeChannel());
     }
 
+    @Test
+    public void setZigBeeChannelError() throws Exception {
+        System.out.println("--- " + Thread.currentThread().getStackTrace()[1].getMethodName());
+
+        final EmberNcp ncp = Mockito.mock(EmberNcp.class);
+        ZigBeeDongleEzsp dongle = new ZigBeeDongleEzsp(null) {
+            @Override
+            public EmberNcp getEmberNcp() {
+                return ncp;
+            }
+        };
+
+        TestUtilities.setField(ZigBeeDongleEzsp.class, dongle, "networkStateUp", true);
+
+        Mockito.when(ncp.setRadioChannel(ArgumentMatchers.any())).thenReturn(EmberStatus.UNKNOWN);
+
+        assertEquals(ZigBeeStatus.INVALID_ARGUMENTS, dongle.setZigBeeChannel(ZigBeeChannel.CHANNEL_03));
+        assertEquals(ZigBeeStatus.BAD_RESPONSE, dongle.setZigBeeChannel(ZigBeeChannel.CHANNEL_24));
+    }
+
     @Test
     public void testEzspMessageSentHandler() throws Exception {
         System.out.println("--- " + Thread.currentThread().getStackTrace()[1].getMethodName());
         ZigBeeTransportReceive transport = Mockito.mock(ZigBeeTransportReceive.class);
 
-        final EmberNcp ncp = Mockito.mock(EmberNcp.class);
-        Mockito.when(ncp.getNwkAddress()).thenReturn(1243);
         ZigBeeDongleEzsp dongle = new ZigBeeDongleEzsp(null);
         dongle.setZigBeeTransportReceive(transport);