diff --git a/app/assets/javascripts/app/controllers/_application_controller.js.coffee b/app/assets/javascripts/app/controllers/_application_controller.js.coffee
index f7ad9a978..3aa434c09 100644
--- a/app/assets/javascripts/app/controllers/_application_controller.js.coffee
+++ b/app/assets/javascripts/app/controllers/_application_controller.js.coffee
@@ -23,6 +23,12 @@ class App.Controller extends Spine.Controller
     # create common accessors
     @apiPath = @Config.get('api_path')
 
+    # remember ajax calls to abort them on dom release
+    @ajaxCalls = []
+    @ajax = (data) =>
+      ajaxId = App.Ajax.request(data)
+      @ajaxCalls.push ajaxId
+
   bind: (event, callback) =>
     App.Event.bind(
       event
@@ -53,6 +59,9 @@ class App.Controller extends Spine.Controller
     App.Event.unbindLevel(@controllerId)
     App.Delay.clearLevel(@controllerId)
     App.Interval.clearLevel(@controllerId)
+    if @ajaxCalls
+      for callId in @ajaxCalls
+        App.Ajax.abort(callId)
 
   release: =>
     # release custom bindings after it got removed from dom
@@ -74,7 +83,6 @@ class App.Controller extends Spine.Controller
     App.Interval.reset()
     App.WebSocket.close( force: true )
 
-
   # add @notify methode to create notification
   notify: (data) ->
     App.Event.trigger 'notify', data
@@ -376,7 +384,7 @@ class App.Controller extends Spine.Controller
 
     # get data
     tickets = {}
-    App.Com.ajax(
+    App.Ajax.request(
       type:  'GET',
       url:   @Config.get('api_path') + '/ticket_customer',
       data:  {
diff --git a/app/assets/javascripts/app/controllers/_dashboard/activity_stream.js.coffee b/app/assets/javascripts/app/controllers/_dashboard/activity_stream.js.coffee
index 4e47ae52b..70a74d844 100644
--- a/app/assets/javascripts/app/controllers/_dashboard/activity_stream.js.coffee
+++ b/app/assets/javascripts/app/controllers/_dashboard/activity_stream.js.coffee
@@ -20,7 +20,7 @@ class App.DashboardActivityStream extends App.Controller
 
     # init fetch via ajax, all other updates on time via websockets
     else
-      App.Com.ajax(
+      @ajax(
         id:    'dashoard_activity_stream'
         type:  'GET'
         url:   @apiPath + '/activity_stream'
diff --git a/app/assets/javascripts/app/controllers/_dashboard/recent_viewed.js.coffee b/app/assets/javascripts/app/controllers/_dashboard/recent_viewed.js.coffee
index f6106d3bd..56cbde3e5 100644
--- a/app/assets/javascripts/app/controllers/_dashboard/recent_viewed.js.coffee
+++ b/app/assets/javascripts/app/controllers/_dashboard/recent_viewed.js.coffee
@@ -8,7 +8,7 @@ class App.DashboardRecentViewed extends App.Controller
     @items = []
 
     # get data
-    App.Com.ajax(
+    @ajax(
       id:    'dashboard_recent_viewed',
       type:  'GET',
       url:   @apiPath + '/recent_viewed',
diff --git a/app/assets/javascripts/app/controllers/_dashboard/rss.js.coffee b/app/assets/javascripts/app/controllers/_dashboard/rss.js.coffee
index da2a71d3d..554162483 100644
--- a/app/assets/javascripts/app/controllers/_dashboard/rss.js.coffee
+++ b/app/assets/javascripts/app/controllers/_dashboard/rss.js.coffee
@@ -18,7 +18,7 @@ class App.DashboardRss extends App.Controller
 
     # init fetch via ajax, all other updates on time via websockets
     else
-      App.Com.ajax(
+      @ajax(
         id:    'dashboard_rss'
         type:  'GET'
         url:   @apiPath + '/rss_fetch'
diff --git a/app/assets/javascripts/app/controllers/_dashboard/ticket.js.coffee b/app/assets/javascripts/app/controllers/_dashboard/ticket.js.coffee
index cd575d591..03678756a 100644
--- a/app/assets/javascripts/app/controllers/_dashboard/ticket.js.coffee
+++ b/app/assets/javascripts/app/controllers/_dashboard/ticket.js.coffee
@@ -27,7 +27,7 @@ class App.DashboardTicket extends App.Controller
 
     # init fetch via ajax, all other updates on time via websockets
     else
-      App.Com.ajax(
+      @ajax(
         id:    'dashboard_ticket_' + @key,
         type:  'GET',
         url:   @apiPath + '/ticket_overviews',
diff --git a/app/assets/javascripts/app/controllers/_profile/language.js.coffee b/app/assets/javascripts/app/controllers/_profile/language.js.coffee
index 0423cf4ef..836f2f474 100644
--- a/app/assets/javascripts/app/controllers/_profile/language.js.coffee
+++ b/app/assets/javascripts/app/controllers/_profile/language.js.coffee
@@ -34,7 +34,7 @@ class App.ProfileLanguage extends App.Controller
 
     # get data
     @locale = params['locale']
-    App.Com.ajax(
+    @ajax(
       id:   'preferences'
       type: 'PUT'
       url:  @apiPath + '/users/preferences'
diff --git a/app/assets/javascripts/app/controllers/_profile/linked_accounts.js.coffee b/app/assets/javascripts/app/controllers/_profile/linked_accounts.js.coffee
index fcacbcda0..9b7447aa5 100644
--- a/app/assets/javascripts/app/controllers/_profile/linked_accounts.js.coffee
+++ b/app/assets/javascripts/app/controllers/_profile/linked_accounts.js.coffee
@@ -50,7 +50,7 @@ class App.ProfileLinkedAccounts extends App.Controller
     uid      = $(e.target).data('uid')
 
     # get data
-    App.Com.ajax(
+    @ajax(
       id:   'account'
       type: 'DELETE'
       url:  @apiPath + '/users/account'
diff --git a/app/assets/javascripts/app/controllers/_profile/password.js.coffee b/app/assets/javascripts/app/controllers/_profile/password.js.coffee
index 49b69e2af..38b706c5e 100644
--- a/app/assets/javascripts/app/controllers/_profile/password.js.coffee
+++ b/app/assets/javascripts/app/controllers/_profile/password.js.coffee
@@ -35,7 +35,7 @@ class App.ProfilePassword extends App.Controller
     @formDisable(e)
 
     # get data
-    App.Com.ajax(
+    @ajax(
       id:   'password_reset'
       type: 'POST'
       url:  @apiPath + '/users/password_change'
diff --git a/app/assets/javascripts/app/controllers/agent_ticket_create.js.coffee b/app/assets/javascripts/app/controllers/agent_ticket_create.js.coffee
index 8b49364a3..a8cd95db7 100644
--- a/app/assets/javascripts/app/controllers/agent_ticket_create.js.coffee
+++ b/app/assets/javascripts/app/controllers/agent_ticket_create.js.coffee
@@ -102,7 +102,7 @@ class App.TicketCreate extends App.Controller
 
       @render()
     else
-      App.Com.ajax(
+      @ajax(
         id:    'ticket_create'
         type:  'GET'
         url:   @apiPath + '/ticket_create'
diff --git a/app/assets/javascripts/app/controllers/agent_ticket_history.js.coffee b/app/assets/javascripts/app/controllers/agent_ticket_history.js.coffee
index 0c048a4d0..2c89a6ad8 100644
--- a/app/assets/javascripts/app/controllers/agent_ticket_history.js.coffee
+++ b/app/assets/javascripts/app/controllers/agent_ticket_history.js.coffee
@@ -10,7 +10,7 @@ class App.TicketHistory extends App.ControllerModal
 
   fetch: (@ticket_id) ->
     # get data
-    App.Com.ajax(
+    @ajax(
       id:    'ticket_history',
       type:  'GET',
       url:   @apiPath + '/ticket_history/' + ticket_id,
diff --git a/app/assets/javascripts/app/controllers/agent_ticket_merge.js.coffee b/app/assets/javascripts/app/controllers/agent_ticket_merge.js.coffee
index 4ffb9689d..6daae0830 100644
--- a/app/assets/javascripts/app/controllers/agent_ticket_merge.js.coffee
+++ b/app/assets/javascripts/app/controllers/agent_ticket_merge.js.coffee
@@ -6,7 +6,7 @@ class App.TicketMerge extends App.ControllerModal
   fetch: ->
 
     # merge tickets
-    App.Com.ajax(
+    @ajax(
       id:    'ticket_merge_list',
       type:  'GET',
       url:   @apiPath + '/ticket_merge_list/' + @ticket_id,
@@ -104,7 +104,7 @@ class App.TicketMerge extends App.ControllerModal
     params = @formParam(e.target)
 
     # merge tickets
-    App.Com.ajax(
+    @ajax(
       id:    'ticket_merge',
       type:  'GET',
       url:   @apiPath +  '/ticket_merge/' + @ticket_id + '/' + params['master_ticket_number'],
diff --git a/app/assets/javascripts/app/controllers/customer_ticket_create.js.coffee b/app/assets/javascripts/app/controllers/customer_ticket_create.js.coffee
index 3c37e9b2e..a3af61b45 100644
--- a/app/assets/javascripts/app/controllers/customer_ticket_create.js.coffee
+++ b/app/assets/javascripts/app/controllers/customer_ticket_create.js.coffee
@@ -34,7 +34,7 @@ class Index extends App.ControllerContent
 
       @render()
     else
-      App.Com.ajax(
+      @ajax(
         id:    'ticket_create',
         type:  'GET',
         url:   @apiPath + '/ticket_create',
diff --git a/app/assets/javascripts/app/controllers/getting_started.js.coffee b/app/assets/javascripts/app/controllers/getting_started.js.coffee
index d4e149c19..a20266b72 100644
--- a/app/assets/javascripts/app/controllers/getting_started.js.coffee
+++ b/app/assets/javascripts/app/controllers/getting_started.js.coffee
@@ -18,7 +18,7 @@ class Index extends App.ControllerContent
   fetch: ->
 
     # get data
-    App.Com.ajax(
+    @ajax(
       id:    'getting_started',
       type:  'GET',
       url:   @apiPath + '/getting_started',
diff --git a/app/assets/javascripts/app/controllers/link_info_widget.js.coffee b/app/assets/javascripts/app/controllers/link_info_widget.js.coffee
index 01c803cae..9bf17db04 100644
--- a/app/assets/javascripts/app/controllers/link_info_widget.js.coffee
+++ b/app/assets/javascripts/app/controllers/link_info_widget.js.coffee
@@ -11,7 +11,7 @@ class App.LinkInfo extends App.Controller
   fetch: () =>
     # fetch item on demand
     # get data
-    App.Com.ajax(
+    @ajax(
       id:    'links_' + @object.id + '_' + @object_type,
       type:  'GET',
       url:   @apiPath + '/links',
@@ -80,7 +80,7 @@ class App.LinkInfo extends App.Controller
     link_object_target_value = @object.id
 
     # get data
-    App.Com.ajax(
+    @ajax(
       id:    'links_remove_' + @object.id + '_' + @object_type,
       type:  'GET',
       url:   @apiPath + '/links/remove',
@@ -123,7 +123,7 @@ class App.LinkAdd extends App.ControllerModal
     params = @formParam(e.target)
 
     # get data
-    App.Com.ajax(
+    @ajax(
       id:    'links_add_' + @object.id + '_' + @object_type,
       type:  'GET',
       url:   @apiPath + '/links/add',
diff --git a/app/assets/javascripts/app/controllers/navigation.js.coffee b/app/assets/javascripts/app/controllers/navigation.js.coffee
index ba6f261f1..11e5d7a2c 100644
--- a/app/assets/javascripts/app/controllers/navigation.js.coffee
+++ b/app/assets/javascripts/app/controllers/navigation.js.coffee
@@ -83,8 +83,8 @@ class App.Navigation extends App.Controller
       @searchFocusSet = false
 
     searchFunction = =>
-      App.Com.ajax(
-        id:    'ticket_search'
+      App.Ajax.request(
+        id:    'search'
         type:  'GET'
         url:   @apiPath + '/search'
         data:
diff --git a/app/assets/javascripts/app/controllers/package.js.coffee b/app/assets/javascripts/app/controllers/package.js.coffee
index cda1f6dc8..bd9026aa2 100644
--- a/app/assets/javascripts/app/controllers/package.js.coffee
+++ b/app/assets/javascripts/app/controllers/package.js.coffee
@@ -13,7 +13,7 @@ class Index extends App.ControllerContent
     @load()
 
   load: ->
-    App.Com.ajax(
+    @ajax(
       id:    'packages',
       type:  'GET',
       url:   @apiPath + '/packages',
@@ -47,7 +47,7 @@ class Index extends App.ControllerContent
       httpType = 'DELETE'
 
     if httpType
-      App.Com.ajax(
+      @ajax(
         id:    'packages',
         type:  httpType,
         url:   @apiPath + '/packages',
diff --git a/app/assets/javascripts/app/controllers/reset_password.js.coffee b/app/assets/javascripts/app/controllers/reset_password.js.coffee
index c154d2f11..e65b12ad3 100644
--- a/app/assets/javascripts/app/controllers/reset_password.js.coffee
+++ b/app/assets/javascripts/app/controllers/reset_password.js.coffee
@@ -43,7 +43,7 @@ class Index extends App.ControllerContent
     @formDisable(e)
 
     # get data
-    App.Com.ajax(
+    @ajax(
       id:   'password_reset'
       type: 'POST'
       url:  @apiPath + '/users/password_reset'
@@ -83,7 +83,7 @@ class Verify extends App.ControllerContent
     # get data
     params = {}
     params['token'] = @token
-    App.Com.ajax(
+    @ajax(
       id:   'password_reset_verify'
       type: 'POST'
       url:  @apiPath + '/users/password_reset_verify'
@@ -119,7 +119,7 @@ class Verify extends App.ControllerContent
     @password = params['password']
 
     # get data
-    App.Com.ajax(
+    @ajax(
       id:   'password_reset_verify'
       type: 'POST'
       url:  @apiPath + '/users/password_reset_verify'
diff --git a/app/assets/javascripts/app/controllers/session.js.coffee b/app/assets/javascripts/app/controllers/session.js.coffee
index 0918f3f10..40258c131 100644
--- a/app/assets/javascripts/app/controllers/session.js.coffee
+++ b/app/assets/javascripts/app/controllers/session.js.coffee
@@ -11,12 +11,12 @@ class Session extends App.ControllerContent
     @interval(
       =>
         @load()
-      10000
+      30000
     )
 
   # fetch data, render view
   load: ->
-    App.Com.ajax(
+    @ajax(
       id:    'sessions'
       type:  'GET'
       url:   @apiPath + '/sessions'
@@ -42,7 +42,7 @@ class Session extends App.ControllerContent
   destroy: (e) ->
     e.preventDefault()
     sessionId = $( e.target ).data('session-id')
-    App.Com.ajax(
+    @ajax(
       id:    'sessions/' + sessionId
       type:  'DELETE'
       url:   @apiPath + '/sessions/' + sessionId
diff --git a/app/assets/javascripts/app/controllers/tag_widget.js.coffee b/app/assets/javascripts/app/controllers/tag_widget.js.coffee
index 2d125f18c..f6b1a2075 100644
--- a/app/assets/javascripts/app/controllers/tag_widget.js.coffee
+++ b/app/assets/javascripts/app/controllers/tag_widget.js.coffee
@@ -9,7 +9,7 @@ class App.TagWidget extends App.Controller
 
   load: =>
     @attribute_id = 'tags_' + @object.id + '_' + @object_type
-    App.Com.ajax(
+    @ajax(
       id:    @attribute_id
       type:  'GET'
       url:   @apiPath + '/tags'
@@ -40,7 +40,7 @@ class App.TagWidget extends App.Controller
 #    @el.find('#tags').elastic()
 
   onAddTag: (item) =>
-    App.Com.ajax(
+    @ajax(
       type:  'GET',
       url:   @apiPath + '/tags/add',
       data:
@@ -53,7 +53,7 @@ class App.TagWidget extends App.Controller
     )
 
   onRemoveTag: (item) =>
-    App.Com.ajax(
+    @ajax(
       type:  'GET'
       url:   @apiPath + '/tags/remove'
       data:
diff --git a/app/assets/javascripts/app/controllers/ticket_overview.js.coffee b/app/assets/javascripts/app/controllers/ticket_overview.js.coffee
index 219c7d294..c9ebf5381 100644
--- a/app/assets/javascripts/app/controllers/ticket_overview.js.coffee
+++ b/app/assets/javascripts/app/controllers/ticket_overview.js.coffee
@@ -39,7 +39,7 @@ class Index extends App.ControllerContent
 
     # init fetch via ajax, all other updates on time via websockets
     else
-      App.Com.ajax(
+      @ajax(
         id:    'ticket_overview_' + @key,
         type:  'GET',
         url:   @apiPath + '/ticket_overviews',
@@ -500,7 +500,7 @@ class Router extends App.Controller
       @ticket_list   = cache.ticket_list
       @redirect()
     else
-      App.Com.ajax(
+      @ajax(
         type:       'GET'
         url:        @apiPath + '/ticket_overviews'
         data:
diff --git a/app/assets/javascripts/app/controllers/ticket_zoom.js.coffee b/app/assets/javascripts/app/controllers/ticket_zoom.js.coffee
index 155af5601..eea3c67da 100644
--- a/app/assets/javascripts/app/controllers/ticket_zoom.js.coffee
+++ b/app/assets/javascripts/app/controllers/ticket_zoom.js.coffee
@@ -64,7 +64,7 @@ class App.TicketZoom extends App.Controller
     return if !@Session.all()
 
     # get data
-    App.Com.ajax(
+    @ajax(
       id:    'ticket_zoom_' + ticket_id
       type:  'GET'
       url:   @apiPath + '/ticket_full/' + ticket_id + '?do_not_log=' + @doNotLog
diff --git a/app/assets/javascripts/app/lib/app_init/track.js.coffee b/app/assets/javascripts/app/lib/app_init/track.js.coffee
index a94c1cc92..836b8f622 100644
--- a/app/assets/javascripts/app/lib/app_init/track.js.coffee
+++ b/app/assets/javascripts/app/lib/app_init/track.js.coffee
@@ -113,7 +113,7 @@ class _trackSingleton
       catch e
         # nothing
 
-    App.Com.ajax(
+    App.Ajax.request(
       type:   'POST'
       url:    @url
       async:  async
diff --git a/app/assets/javascripts/app/lib/app_post/ajax.js.coffee b/app/assets/javascripts/app/lib/app_post/ajax.js.coffee
index 6a0c8512c..4dc599d99 100644
--- a/app/assets/javascripts/app/lib/app_post/ajax.js.coffee
+++ b/app/assets/javascripts/app/lib/app_post/ajax.js.coffee
@@ -1,9 +1,14 @@
-class App.Com
+class App.Ajax
   _instance = undefined # Must be declared here to force the closure on the class
-  @ajax: (args) -> # Must be a static method
+  @request: (args) -> # Must be a static method
     if _instance == undefined
       _instance ?= new _ajaxSingleton
-    _instance.ajax(args)
+    _instance.request(args)
+
+  @abort: (args) -> # Must be a static method
+    if _instance == undefined
+      _instance ?= new _ajaxSingleton
+    _instance.abort(args)
 
 # The actual Singleton class
 class _ajaxSingleton
@@ -61,19 +66,44 @@ class _ajaxSingleton
       )
     )
 
-  ajax: (params) ->
+  request: (params) ->
     data = $.extend({}, @defaults, params )
+
+    # execute call with id, clear old call first if exists
     if params['id']
-      if @current_request[ params['id'] ]
-        @current_request[ params['id'] ].abort()
+      @abort( params['id'] )
       @current_request[ params['id'] ] = $.ajax( data )
+      return params['id']
+
+    # generate a uniq rand id
+    params['id'] = 'rand-' + new Date().getTime() + '-' + Math.floor( Math.random() * 99999 )
+
+    # queue request
+    if params['queue']
+      @queue_list.push data
+      if !@queue_running
+        @_run()
+
+    # execute request
     else
-      if params['queue']
-        @queue_list.push data
-        if !@queue_running
-          @_run()
-      else
-        $.ajax(data)
+      @current_request[ params['id'] ] = $.ajax(data)
+
+    params['id']
+
+  abort: (id) =>
+
+    # abort current_request
+    if @current_request[ id ]
+      @current_request[ id ].abort()
+      delete @current_request[ id ]
+
+    # remove from queue list
+    @queue_list = _.filter(
+      @queue_list
+      (item) ->
+        return item if item['id'] isnt id
+        return
+    )
 
   _run: =>
     if @queue_list && @queue_list[0]
@@ -82,7 +112,7 @@ class _ajaxSingleton
       request.complete = =>
         @queue_running = false
         @_run()
-      $.ajax( request )
+      @current_request[ request['id'] ] = $.ajax( request )
 
   _show_spinner: =>
     @count++
diff --git a/app/assets/javascripts/app/lib/app_post/auth.js.coffee b/app/assets/javascripts/app/lib/app_post/auth.js.coffee
index beb9c7832..cc728c952 100644
--- a/app/assets/javascripts/app/lib/app_post/auth.js.coffee
+++ b/app/assets/javascripts/app/lib/app_post/auth.js.coffee
@@ -2,7 +2,7 @@ class App.Auth
 
   @login: (params) ->
     App.Log.notice 'Auth', 'login', params
-    App.Com.ajax(
+    App.Ajax.request(
       id:     'login',
       type:   'POST',
       url:     App.Config.get('api_path') + '/signin',
@@ -22,7 +22,7 @@ class App.Auth
 
   @loginCheck: ->
     App.Log.notice 'Auth', 'loginCheck'
-    App.Com.ajax(
+    App.Ajax.request(
       id:    'login_check'
       async: false
       type:  'GET'
@@ -38,7 +38,7 @@ class App.Auth
 
   @logout: ->
     App.Log.notice 'Auth', 'logout'
-    App.Com.ajax(
+    App.Ajax.request(
       id:   'logout'
       type: 'DELETE'
       url:  App.Config.get('api_path') + '/signout'
diff --git a/app/assets/javascripts/app/lib/app_post/i18n.js.coffee b/app/assets/javascripts/app/lib/app_post/i18n.js.coffee
index 8c2a442ff..5f3fe4bc4 100644
--- a/app/assets/javascripts/app/lib/app_post/i18n.js.coffee
+++ b/app/assets/javascripts/app/lib/app_post/i18n.js.coffee
@@ -100,7 +100,7 @@ class _i18nSingleton extends Spine.Module
     @locale = locale
 
     @map = {}
-    App.Com.ajax(
+    App.Ajax.request(
       id:    'i18n-set-' + locale,
       type:   'GET',
       url:    App.Config.get('api_path') + '/translations/lang/' + locale,
diff --git a/app/assets/javascripts/app/lib/app_post/websocket.js.coffee b/app/assets/javascripts/app/lib/app_post/websocket.js.coffee
index e5be0b9ba..ea1d9593e 100644
--- a/app/assets/javascripts/app/lib/app_post/websocket.js.coffee
+++ b/app/assets/javascripts/app/lib/app_post/websocket.js.coffee
@@ -291,7 +291,7 @@ class _webSocketSingleton extends App.Controller
     if @_ajaxInitWorking
       @_ajaxInitWorking.abort()
     # call init request
-    @_ajaxInitWorking = App.Com.ajax(
+    @_ajaxInitWorking = App.Ajax.request(
       type:  'POST'
       url:   @Config.get('api_path') + '/message_send'
       data:  JSON.stringify({ data: { action: 'login' }  })
@@ -327,7 +327,7 @@ class _webSocketSingleton extends App.Controller
   _ajaxSendQueue: =>
     while !_.isEmpty(@queue)
       data = @queue.shift()
-      App.Com.ajax(
+      App.Ajax.request(
         type:  'POST'
         url:   @Config.get('api_path') + '/message_send'
         data:  JSON.stringify({ client_id: @client_id, data: data })
@@ -346,7 +346,7 @@ class _webSocketSingleton extends App.Controller
     return if !@client_id
     return if @_ajaxReceiveWorking is true
     @_ajaxReceiveWorking = true
-    App.Com.ajax(
+    App.Ajax.request(
       id:    'message_receive',
       type:  'POST'
       url:   @Config.get('api_path') + '/message_receive'