diff --git a/server/src/main/java/com/cloud/network/router/VpcNetworkHelperImpl.java b/server/src/main/java/com/cloud/network/router/VpcNetworkHelperImpl.java
index b4cf809726d..4e49bd0e0a3 100644
--- a/server/src/main/java/com/cloud/network/router/VpcNetworkHelperImpl.java
+++ b/server/src/main/java/com/cloud/network/router/VpcNetworkHelperImpl.java
@@ -154,14 +154,15 @@ public class VpcNetworkHelperImpl extends NetworkHelperImpl {
                     publicVlans.add(publicIp.getVlanTag());
                 }
             }
-            if (publicNetwork != null) {
-                if (networks.get(publicNetwork) != null) {
-                    @SuppressWarnings("unchecked") final List<NicProfile> publicNicProfiles = (List<NicProfile>)networks.get(publicNetwork);
-                    publicNicProfiles.addAll(publicNics);
-                    networks.put(publicNetwork, publicNicProfiles);
-                } else {
-                    networks.put(publicNetwork, publicNics);
-                }
+        }
+        if (publicNetwork != null) {
+            if (networks.get(publicNetwork) != null) {
+                @SuppressWarnings("unchecked")
+                final List<NicProfile> publicNicProfiles = (List<NicProfile>)networks.get(publicNetwork);
+                publicNicProfiles.addAll(publicNics);
+                networks.put(publicNetwork, publicNicProfiles);
+            } else {
+                networks.put(publicNetwork, publicNics);
             }
         }
 
@@ -187,4 +188,4 @@ public class VpcNetworkHelperImpl extends NetworkHelperImpl {
 
         return networks;
     }
-}
\ No newline at end of file
+}
diff --git a/server/src/main/java/com/cloud/tags/TaggedResourceManagerImpl.java b/server/src/main/java/com/cloud/tags/TaggedResourceManagerImpl.java
index 3fdb47f4ede..ae7949863b4 100644
--- a/server/src/main/java/com/cloud/tags/TaggedResourceManagerImpl.java
+++ b/server/src/main/java/com/cloud/tags/TaggedResourceManagerImpl.java
@@ -85,6 +85,7 @@ import org.apache.commons.collections.MapUtils;
 
 import javax.inject.Inject;
 import javax.naming.ConfigurationException;
+import javax.persistence.EntityExistsException;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
@@ -314,7 +315,11 @@ public class TaggedResourceManagerImpl extends ManagerBase implements TaggedReso
                         }
 
                         ResourceTagVO resourceTag = new ResourceTagVO(key, value, accountDomainPair.first(), accountDomainPair.second(), id, resourceType, customer, resourceUuid);
-                        resourceTag = _resourceTagDao.persist(resourceTag);
+                        try {
+                            resourceTag = _resourceTagDao.persist(resourceTag);
+                        } catch (EntityExistsException e) {
+                            throw new CloudRuntimeException(String.format("tag %s already on %s with id %s", resourceTag.getKey(), resourceType.toString(), resourceId),e);
+                        }
                         resourceTags.add(resourceTag);
                     }
                 }
diff --git a/test/integration/component/test_tags.py b/test/integration/component/test_tags.py
index 11a0bbad196..9180e7b9256 100644
--- a/test/integration/component/test_tags.py
+++ b/test/integration/component/test_tags.py
@@ -2989,3 +2989,83 @@ class TestResourceTags(cloudstackTestCase):
             self.fail("User1 has access to create tags for User2.")
                                 
         return
+
+    @attr(tags=["advanced", "basic"], required_hardware="false")
+    def test_33_duplicate_vm_tag(self):
+        """
+         Test creation of a duplicate tag on UserVM and verify error return.
+         cleanup by deleting
+        """
+        # Validate the following
+        # 1. Create  a tag on VM using createTags API
+        # 2. Create the same tag on VM using createTags API
+        # 3. check the return for the right error message
+
+        tag_key = 'scope'
+        tag_value = 'test_33_duplicate_vm_tag'
+
+        self.debug("Creating a tag for user VM")
+        # use vm_2 as vm_1 is deleted in other tests :(
+        tag = Tag.create(
+            self.apiclient,
+            resourceIds=self.vm_2.id,
+            resourceType='userVM',
+            tags={tag_key: tag_value}
+        )
+        self.debug("Tag created: %s" % tag.__dict__)
+
+        self.debug("Trying second tag witgh the same key for user VM")
+        try:
+            erronousTag = Tag.create(
+                self.apiclient,
+                resourceIds=self.vm_2.id,
+                resourceType='userVM',
+                tags={tag_key: tag_value}
+            )
+        except Exception as e:
+            # verify e.message
+            assert "tag scope already on UserVm with id" in e.message, \
+                "neat error message missing from error result"
+            pass
+
+
+        # we should still find the tag
+        vms = VirtualMachine.list(
+            self.apiclient,
+            listall=True,
+            key=tag_key,
+            value=tag_value
+        )
+
+        self.assertEqual(
+            isinstance(vms, list),
+            True,
+            "Tag based VMs listing failed")
+
+        self.debug("Deleting the created tag..")
+        try:
+            Tag.delete(
+                self.apiclient,
+                resourceIds=self.vm_2.id,
+                resourceType='userVM',
+                tags={tag_key: tag_value}
+            )
+        except Exception as e:
+            self.fail("Failed to delete the tag - %s" % e)
+
+        self.debug("Verifying if tag is actually deleted!")
+        tags = Tag.list(
+            self.apiclient,
+            listall=True,
+            resourceType='userVM',
+            account=self.account.name,
+            domainid=self.account.domainid,
+            key=tag_key,
+            value=tag_value
+        )
+        self.assertEqual(
+            tags,
+            None,
+            "List tags should return empty response"
+        )
+        return
diff --git a/ui/scripts/ui/widgets/listView.js b/ui/scripts/ui/widgets/listView.js
index 4a5d2016f1a..69a5c7a7f47 100644
--- a/ui/scripts/ui/widgets/listView.js
+++ b/ui/scripts/ui/widgets/listView.js
@@ -2497,6 +2497,8 @@
                 this.data('view-args').sections[activeSection].listView :
                 this.data('view-args').listView;
 
+            toggleMultiSelectActions(this, false);
+
             loadBody(
                 this.find('table:last'),
                 listViewArgs.dataProvider,