diff --git a/TestON/tests/CHOTestMonkey/CHOTestMonkey.py b/TestON/tests/CHOTestMonkey/CHOTestMonkey.py
index 75e95ca..7b07758 100644
--- a/TestON/tests/CHOTestMonkey/CHOTestMonkey.py
+++ b/TestON/tests/CHOTestMonkey/CHOTestMonkey.py
@@ -248,7 +248,7 @@
         startStatus = main.Mininet1.startNet( topoFile = topoPath )
         main.mininetSwitches = main.Mininet1.getSwitches()
         main.mininetHosts = main.Mininet1.getHosts()
-        main.mininetLinks = main.Mininet1.getLinks()
+        main.mininetLinks = main.Mininet1.getLinks( timeout=60 )
         utilities.assert_equals( expect=main.TRUE,
                                  actual=startStatus,
                                  onpass="Start Mininet topology test PASS",
diff --git a/TestON/tests/CHOTestMonkey/dependencies/EventGenerator.py b/TestON/tests/CHOTestMonkey/dependencies/EventGenerator.py
index 0811019..dd53238 100644
--- a/TestON/tests/CHOTestMonkey/dependencies/EventGenerator.py
+++ b/TestON/tests/CHOTestMonkey/dependencies/EventGenerator.py
@@ -400,9 +400,7 @@
                 main.eventScheduler.scheduleEvent( EventType().NULL, EventScheduleMethod().RUN_BLOCK )
             sleepTime = int( main.params[ 'EVENT' ][ 'installAllHostIntents' ][ 'sleepBeforeCheck' ] )
             main.eventScheduler.scheduleEvent( EventType().TEST_SLEEP, EventScheduleMethod().RUN_BLOCK, [ sleepTime ] )
-            main.eventScheduler.scheduleEvent( EventType().CHECK_INTENT, EventScheduleMethod().RUN_NON_BLOCK )
-            main.eventScheduler.scheduleEvent( EventType().CHECK_FLOW, EventScheduleMethod().RUN_NON_BLOCK )
-            main.eventScheduler.scheduleEvent( EventType().CHECK_TRAFFIC, EventScheduleMethod().RUN_NON_BLOCK )
+            self.insertAllChecks( EventScheduleMethod().RUN_NON_BLOCK )
             if scheduleMethod == EventScheduleMethod().RUN_BLOCK:
                 main.eventScheduler.scheduleEvent( EventType().NULL, EventScheduleMethod().RUN_BLOCK )
 
@@ -437,9 +435,7 @@
                 main.eventScheduler.scheduleEvent( EventType().NULL, EventScheduleMethod().RUN_BLOCK )
             sleepTime = int( main.params[ 'EVENT' ][ 'removeAllHostIntents' ][ 'sleepBeforeCheck' ] )
             main.eventScheduler.scheduleEvent( EventType().TEST_SLEEP, EventScheduleMethod().RUN_BLOCK, [ sleepTime ] )
-            main.eventScheduler.scheduleEvent( EventType().CHECK_INTENT, EventScheduleMethod().RUN_NON_BLOCK )
-            main.eventScheduler.scheduleEvent( EventType().CHECK_FLOW, EventScheduleMethod().RUN_NON_BLOCK )
-            main.eventScheduler.scheduleEvent( EventType().CHECK_TRAFFIC, EventScheduleMethod().RUN_NON_BLOCK )
+            self.insertAllChecks( EventScheduleMethod().RUN_NON_BLOCK )
             if scheduleMethod == EventScheduleMethod().RUN_BLOCK:
                 main.eventScheduler.scheduleEvent( EventType().NULL, EventScheduleMethod().RUN_BLOCK )
 
@@ -474,9 +470,7 @@
                 main.eventScheduler.scheduleEvent( EventType().NULL, EventScheduleMethod().RUN_BLOCK )
             sleepTime = int( main.params[ 'EVENT' ][ 'installAllPointIntents' ][ 'sleepBeforeCheck' ] )
             main.eventScheduler.scheduleEvent( EventType().TEST_SLEEP, EventScheduleMethod().RUN_BLOCK, [ sleepTime ] )
-            main.eventScheduler.scheduleEvent( EventType().CHECK_INTENT, EventScheduleMethod().RUN_NON_BLOCK )
-            main.eventScheduler.scheduleEvent( EventType().CHECK_FLOW, EventScheduleMethod().RUN_NON_BLOCK )
-            main.eventScheduler.scheduleEvent( EventType().CHECK_TRAFFIC, EventScheduleMethod().RUN_NON_BLOCK )
+            self.insertAllChecks( EventScheduleMethod().RUN_NON_BLOCK )
             if scheduleMethod == EventScheduleMethod().RUN_BLOCK:
                 main.eventScheduler.scheduleEvent( EventType().NULL, EventScheduleMethod().RUN_BLOCK )
 
@@ -511,8 +505,6 @@
                 main.eventScheduler.scheduleEvent( EventType().NULL, EventScheduleMethod().RUN_BLOCK )
             sleepTime = int( main.params[ 'EVENT' ][ 'removeAllPointIntents' ][ 'sleepBeforeCheck' ] )
             main.eventScheduler.scheduleEvent( EventType().TEST_SLEEP, EventScheduleMethod().RUN_BLOCK, [ sleepTime ] )
-            main.eventScheduler.scheduleEvent( EventType().CHECK_INTENT, EventScheduleMethod().RUN_NON_BLOCK )
-            main.eventScheduler.scheduleEvent( EventType().CHECK_FLOW, EventScheduleMethod().RUN_NON_BLOCK )
-            main.eventScheduler.scheduleEvent( EventType().CHECK_TRAFFIC, EventScheduleMethod().RUN_NON_BLOCK )
+            self.insertAllChecks( EventScheduleMethod().RUN_NON_BLOCK )
             if scheduleMethod == EventScheduleMethod().RUN_BLOCK:
                 main.eventScheduler.scheduleEvent( EventType().NULL, EventScheduleMethod().RUN_BLOCK )
diff --git a/TestON/tests/CHOTestMonkey/dependencies/events/AppEvent.py b/TestON/tests/CHOTestMonkey/dependencies/events/AppEvent.py
index 7f0ca7c..de5fd48 100644
--- a/TestON/tests/CHOTestMonkey/dependencies/events/AppEvent.py
+++ b/TestON/tests/CHOTestMonkey/dependencies/events/AppEvent.py
@@ -194,10 +194,14 @@
         controller = main.controllers[ self.CLIIndex - 1 ]
         with controller.CLILock:
             # TODO: handle the case that multiple hosts attach to one device
+            srcMAC = ""
+            dstMAC = ""
+            if len( self.deviceA.hosts ) > 0:
+                srcMAC = self.deviceA.hosts[ 0 ].mac
+            if len( self.deviceB.hosts ) > 0:
+                dstMAC = self.deviceB.hosts[ 0 ].mac
             id = controller.CLI.addPointIntent( self.deviceA.dpid, self.deviceB.dpid,
-                                                1, 1, '',
-                                                self.deviceA.hosts[ 0 ].mac,
-                                                self.deviceB.hosts[ 0 ].mac )
+                                                1, 1, '', srcMAC, dstMAC )
         if id == None:
             main.log.warn( self.typeString + " - add point intent failed" )
             return EventStates().FAIL