diff --git a/kfet/open/static/kfetopen/kfet-open.js b/kfet/open/static/kfetopen/kfet-open.js
index 6edfeb7e..3887bff0 100644
--- a/kfet/open/static/kfetopen/kfet-open.js
+++ b/kfet/open/static/kfetopen/kfet-open.js
@@ -21,9 +21,9 @@ var OpenKfet = function(force_close_url, admin) {
 
 OpenKfet.prototype = {
     // Status is unknown after . minutes without update.
-    time_unknown: 2,
+    time_unknown: 15,
     // Maximum interval (seconds) between two UI refresh.
-    refresh_interval: 10,
+    refresh_interval: 20,
 
     // Prefix for classes describing place status.
     class_prefix: 'kfetopen-st-',