diff --git a/plugins/UiConfig/media/js/ConfigStorage.coffee b/plugins/UiConfig/media/js/ConfigStorage.coffee
index b1c6e4fd..654f0363 100644
--- a/plugins/UiConfig/media/js/ConfigStorage.coffee
+++ b/plugins/UiConfig/media/js/ConfigStorage.coffee
@@ -46,6 +46,11 @@ class ConfigStorage extends Class
 
 		# Network
 		section = @createSection("Network")
+		section.items.push
+			key: "offline"
+			title: "Offline mode"
+			type: "checkbox"
+			description: "Disable network communication."
 
 		section.items.push
 			key: "fileserver_ip_type"
diff --git a/plugins/UiConfig/media/js/all.js b/plugins/UiConfig/media/js/all.js
index 0d0f2c3d..99c3a6d8 100644
--- a/plugins/UiConfig/media/js/all.js
+++ b/plugins/UiConfig/media/js/all.js
@@ -1,5 +1,4 @@
 
-
 /* ---- plugins/UiConfig/media/js/lib/Class.coffee ---- */
 
 
@@ -963,7 +962,6 @@
 }));
 
 
-
 /* ---- plugins/UiConfig/media/js/utils/Animation.coffee ---- */
 
 
@@ -1358,6 +1356,12 @@
         type: "checkbox"
       });
       section = this.createSection("Network");
+      section.items.push({
+        key: "offline",
+        title: "Offline mode",
+        type: "checkbox",
+        description: "Disable network communication."
+      });
       section.items.push({
         key: "fileserver_ip_type",
         title: "File server network",
diff --git a/src/Config.py b/src/Config.py
index 9d800851..759aa194 100644
--- a/src/Config.py
+++ b/src/Config.py
@@ -20,7 +20,7 @@ class Config(object):
         self.need_restart = False
         self.keys_api_change_allowed = set([
             "tor", "fileserver_port", "language", "tor_use_bridges", "trackers_proxy", "trackers",
-            "trackers_file", "open_browser", "log_level", "fileserver_ip_type", "ip_external"
+            "trackers_file", "open_browser", "log_level", "fileserver_ip_type", "ip_external", "offline"
         ])
         self.keys_restart_need = set(["tor", "fileserver_port", "fileserver_ip_type"])
         self.start_dir = self.getStartDir()