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 39f655111..a512747c0 100644
--- a/app/assets/javascripts/app/controllers/agent_ticket_merge.js.coffee
+++ b/app/assets/javascripts/app/controllers/agent_ticket_merge.js.coffee
@@ -131,7 +131,9 @@ class App.TicketMerge extends App.ControllerModal
           @notify
             type:    'success',
             msg:     App.i18n.translateContent( 'Ticket %s merged!', data.slave_ticket['number'] ),
-            timeout: 6000,
+            timeout: 4000,
+
+          App.TaskManager.remove( @task_key )
 
         else
 
diff --git a/app/assets/javascripts/app/controllers/agent_ticket_zoom.js.coffee b/app/assets/javascripts/app/controllers/agent_ticket_zoom.js.coffee
index 7b63080dc..aa9f2e52f 100644
--- a/app/assets/javascripts/app/controllers/agent_ticket_zoom.js.coffee
+++ b/app/assets/javascripts/app/controllers/agent_ticket_zoom.js.coffee
@@ -83,9 +83,11 @@ class App.TicketZoom extends App.Controller
         App.Store.write( @key, data )
 
       error: (xhr, status, error) =>
+
+        # do not close window if request is abort or network error exists
         return if status is 'abort'
+        return if status is 'error'
         App.TaskManager.remove( @task_key )
-        @release()
     )
     @doNotLog = 1
 
@@ -599,7 +601,7 @@ class TicketActionRow extends App.Controller
 
   merge_dialog: (e) ->
     e.preventDefault()
-    new App.TicketMerge( ticket_id: @ticket.id )
+    new App.TicketMerge( ticket_id: @ticket.id, task_key: @zoom.task_key )
 
   customer_dialog: (e) ->
     e.preventDefault()