diff --git a/app/assets/javascripts/app/controllers/import_otrs.coffee b/app/assets/javascripts/app/controllers/import_otrs.coffee
index 887737c97..da6e8f92c 100644
--- a/app/assets/javascripts/app/controllers/import_otrs.coffee
+++ b/app/assets/javascripts/app/controllers/import_otrs.coffee
@@ -18,12 +18,6 @@ class Index extends App.ControllerContent
 
     @fetch()
 
-    @bind('import:finished', =>
-      console.log('import:finished')
-      @Config.set('system_init_done', true)
-      @navigate '#'
-    )
-
   fetch: ->
 
     # get data
@@ -95,7 +89,7 @@ class Index extends App.ControllerContent
             @nextStartMigration.addClass('hide')
 
       )
-    @delay( callback, 700, 'import_otrs_url' )
+    @delay(callback, 700, 'import_otrs_url')
 
   startMigration: (e) =>
     e.preventDefault()
@@ -106,10 +100,8 @@ class Index extends App.ControllerContent
       url:         @apiPath + '/import/otrs/import_start',
       processData: true,
       success:     (data, status, xhr) =>
-
-        # validate form
         if data.result is 'ok'
-          @delay( @updateMigration, 3000 )
+          @delay(@updateMigration, 3000)
     )
 
 
@@ -127,17 +119,24 @@ class Index extends App.ControllerContent
           @navigate '#'
           return
 
-        for key, item of data.data
-          element = @$('.js-' + key.toLowerCase() )
-          element.find('.js-done').text(item.done)
-          element.find('.js-total').text(item.total)
-          element.find('progress').attr('max', item.total )
-          element.find('progress').attr('value', item.done )
-          if item.total <= item.done
-            element.addClass('is-done')
-          else
-            element.removeClass('is-done')
-        @delay( @updateMigration, 5000 )
+        if data.result is 'error'
+          @$('.js-error').removeClass('hide')
+          @$('.js-error').html(App.i18n.translateContent(data.message))
+        else
+          @$('.js-error').addClass('hide')
+
+        if data.result is 'in_progress'
+          for key, item of data.data
+            element = @$('.js-' + key.toLowerCase() )
+            element.find('.js-done').text(item.done)
+            element.find('.js-total').text(item.total)
+            element.find('progress').attr('max', item.total )
+            element.find('progress').attr('value', item.done )
+            if item.total <= item.done
+              element.addClass('is-done')
+            else
+              element.removeClass('is-done')
+        @delay(@updateMigration, 6500)
     )
 
 App.Config.set( 'import/otrs', Index, 'Routes' )
diff --git a/app/assets/javascripts/app/views/import/otrs.jst.eco b/app/assets/javascripts/app/views/import/otrs.jst.eco
index 97def7444..caa7222c7 100644
--- a/app/assets/javascripts/app/views/import/otrs.jst.eco
+++ b/app/assets/javascripts/app/views/import/otrs.jst.eco
@@ -41,6 +41,8 @@
 
     <div class="wizard-slide vertical hide" data-slide="otrs-import">
       <h2><%- @T('OTRS Migration') %></h2>
+      <div class="alert alert--danger hide js-error" role="alert"></div>
+
       <div class="wizard-body flex vertical justified">
         <table class="progressTable">
           <tr class="js-config">
diff --git a/app/controllers/import_otrs_controller.rb b/app/controllers/import_otrs_controller.rb
index 24a174659..b92625a8d 100644
--- a/app/controllers/import_otrs_controller.rb
+++ b/app/controllers/import_otrs_controller.rb
@@ -80,7 +80,6 @@ class ImportOtrsController < ApplicationController
 
   def import_start
     return if setup_done_response
-
     Setting.set('import_mode', true)
     welcome = Import::OTRS.connection_test
     if !welcome
@@ -92,7 +91,10 @@ class ImportOtrsController < ApplicationController
     end
 
     # start migration
-    Import::OTRS.delay.start
+    Import::OTRS.delay.start_bg(
+      import_otrs_endpoint: Setting.get('import_otrs_endpoint'),
+      import_otrs_endpoint_key: Setting.get('import_otrs_endpoint_key'),
+    )
 
     render json: {
       result: 'ok',
@@ -100,18 +102,11 @@ class ImportOtrsController < ApplicationController
   end
 
   def import_status
-    if !Setting.get('import_mode')
-      render json: {
-        setup_done: true,
-      }
-      return
+    result = Import::OTRS.status_bg
+    if result[:setup_done] == true
+      Setting.reload
     end
-
-    state = Import::OTRS.current_state
-    render json: {
-      data: state,
-      result: 'in_progress',
-    }
+    render json: result
   end
 
   private
diff --git a/app/models/setting.rb b/app/models/setting.rb
index abd47367c..495ba1713 100644
--- a/app/models/setting.rb
+++ b/app/models/setting.rb
@@ -77,13 +77,25 @@ reset config setting to default
     @@current[:settings_config][name]
   end
 
+=begin
+
+reload config settings
+
+  Setting.reload
+
+=end
+
+  def self.reload
+    load(true)
+  end
+
   private
 
   # load values and cache them
-  def self.load
+  def self.load(force = false)
 
     # check if config is already generated
-    if @@current[:settings_config]
+    if !force && @@current[:settings_config]
       return false if cache_valid?
     end
 
diff --git a/lib/import/otrs.rb b/lib/import/otrs.rb
index 0ec12c2ba..50b084d26 100644
--- a/lib/import/otrs.rb
+++ b/lib/import/otrs.rb
@@ -214,7 +214,7 @@ module Import::OTRS
 
 =begin
 
-  get object statistic from server ans save it in cache
+  get object statistic from remote server ans save it in cache
 
   result = statistic('Subaction=List')
 
@@ -409,15 +409,80 @@ module Import::OTRS
       threads[thread].join
     }
 
+    true
+  end
+
+=begin
+  start import in background
+
+  Import::OTRS.start_bg(
+    import_otrs_endpoint: 'http://vz599.demo.znuny.com/otrs/public.pl?Action=ZammadMigrator
+',
+    import_otrs_endpoint_key: '01234567899876543210',
+  )
+=end
+
+  def self.start_bg(params)
+    Setting.set('import_mode', 'true')
+    Setting.set('import_backend', 'otrs')
+    Setting.set('import_otrs_endpoint', params[:import_otrs_endpoint])
+    Setting.set('import_otrs_endpoint_key', params[:import_otrs_endpoint_key])
+
+    status_update_thread = Thread.new {
+      loop do
+        result = {
+          data: current_state,
+          result: 'in_progress',
+        }
+        Cache.write('import:state', result, expires_in: 10.minutes)
+        sleep 8
+      end
+    }
+
+    sleep 5
+
+    begin
+      import_thread = Thread.new {
+        Import::OTRS.start
+      }
+    rescue => e
+      status_update_thread.exit
+      status_update_thread.join
+      Rails.logger.error e.message
+      Rails.logger.error e.backtrace.inspect
+      result = {
+        message: e.message,
+        result: 'error',
+      }
+      Cache.write('import:state', result, expires_in: 10.hours)
+    end
+    import_thread.join
+    status_update_thread.exit
+    status_update_thread.join
+
     Setting.set('system_init_done', true)
     Setting.set('import_mode', false)
+  end
 
-    # broadcast import finish
-    Sessions.broadcast(
-      event: 'import:finished',
-    )
+=begin
 
-    true
+  get import state from background process
+
+  result = Import::OTRS.status_bg
+
+=end
+
+  def self.status_bg
+    if !Setting.get('import_mode')
+      return {
+        setup_done: true,
+      }
+    end
+    state = Cache.get('import:state')
+    return state if state
+    {
+      message: 'not running',
+    }
   end
 
   def self.diff_worker