diff --git a/includes/html/forms/rediscover-device.inc.php b/includes/html/forms/rediscover-device.inc.php
index f96e94c7ba..82ec7f40fe 100644
--- a/includes/html/forms/rediscover-device.inc.php
+++ b/includes/html/forms/rediscover-device.inc.php
@@ -22,18 +22,42 @@ if (!Auth::user()->hasGlobalAdmin()) {
 }
 
 // FIXME: Make this part of the API instead of a standalone function
-if (!is_numeric($_POST['device_id'])) {
-    $status  = 'error';
-    $message = 'Invalid device id';
-} else {
-    $update = dbUpdate(array('last_discovered' => array('NULL')), 'devices', '`device_id` = ?', array($_POST['device_id']));
-    if (!empty($update) || $update == '0') {
-        $status  = 'ok';
-        $message = 'Device will be rediscovered';
+if (isset($_POST['device_id'])) {
+    if (!is_numeric($_POST['device_id'])) {
+        $status  = 'error';
+        $message = 'Invalid device id ' . $_POST['device_id'];
     } else {
-         $status  = 'error';
-         $message = 'Error rediscovering device';
+        $update = dbUpdate(array('last_discovered' => array('NULL')), 'devices', '`device_id` = ?', array($_POST['device_id']));
+        if (!empty($update) || $update == '0') {
+            $status  = 'ok';
+            $message = 'Device ' . $_POST['device_id'] . ' will be rediscovered';
+        } else {
+             $status  = 'error';
+             $message = 'Error rediscovering device ' . $_POST['device_id'];
+        }
     }
+} elseif (isset($_POST['device_group_id'])) {
+    if (!is_numeric($_POST['device_group_id'])) {
+        $status  = 'error';
+        $message = 'Invalid device group id ' . $_POST['device_group_id'];
+    } else {
+        $device_ids = dbFetchColumn("SELECT `device_id` FROM `device_group_device` WHERE `device_group_id`=" . $_POST['device_group_id']);
+        $update = 0;
+        foreach ($device_ids as $device_id) {
+            $update += dbUpdate(array('last_discovered' => array('NULL')), 'devices', '`device_id` = ?', array($device_id));
+        }
+
+        if (!empty($update) || $update == '0') {
+            $status  = 'ok';
+            $message = 'Devices of group ' . $_POST['device_group_id'] . ' will be rediscovered';
+        } else {
+            $status  = 'error';
+            $message = 'Error rediscovering devices of group ' . $_POST['device_group_id'];
+        }
+    }
+} else {
+    $status  = 'Error';
+    $message = 'Undefined POST keys received';
 }
 
 $output = array(
diff --git a/resources/views/device-group/index.blade.php b/resources/views/device-group/index.blade.php
index c333ae0c64..11d4eab99e 100644
--- a/resources/views/device-group/index.blade.php
+++ b/resources/views/device-group/index.blade.php
@@ -41,10 +41,14 @@
                                 </td>
                                 <td>{{ $device_group->type == 'dynamic' ? $device_group->getParser()->toSql(false) : '' }}</td>
                                 <td>
-                                    <a type="button" class="btn btn-primary btn-sm" aria-label="@lang('Edit')"
+                                    <button type="button" title="@lang('Rediscover all Devices of Device Group')" class="btn btn-warning btn-sm" aria-label="@lang('Rediscover Group')"
+                                            onclick="discover_dg(this, '{{ $device_group->id }}')">
+                                        <i
+                                            class="fa fa-retweet" aria-hidden="true"></i></button>
+                                    <a type="button" title="@lang('edit Device Group')" class="btn btn-primary btn-sm" aria-label="@lang('Edit')"
                                        href="{{ route('device-groups.edit', $device_group->id) }}">
                                         <i class="fa fa-pencil" aria-hidden="true"></i></a>
-                                    <button type="button" class="btn btn-danger btn-sm" aria-label="@lang('Delete')"
+                                    <button type="button" class="btn btn-danger btn-sm" title="@lang('delete Device Group')" aria-label="@lang('Delete')"
                                             onclick="delete_dg(this, '{{ $device_group->name }}', '{{ route('device-groups.destroy', $device_group->id) }}')">
                                         <i
                                             class="fa fa-trash" aria-hidden="true"></i></button>
@@ -111,6 +115,24 @@
 
             return false;
         }
+        function discover_dg(button, id) {
+            $.ajax({
+                type: 'POST',
+                url: 'ajax_form.php',
+                data: { type: "rediscover-device", device_group_id: id },
+                dataType: "json",
+                success: function(data){
+                    if(data['status'] == 'ok') {
+                        toastr.success(data['message']);
+                    } else {
+                        toastr.error(data['message']);
+                    }
+                },
+                error:function(){
+                    toastr.error('An error occured setting this device Group to be rediscovered');
+                }
+            });
+        }
     </script>
 @endsection