Where most complaints about this service are coming from, over the last 24 hours.
Shows where the service URL was unreachable during the detected outage periods. Percentages indicate the share of failed checks from monitoring locations in each country.
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If the NS app refuses to open or crashes immediately, the first thing to check is whether your OS version is still supported. NS regularly updates the app, and older Android or iOS versions get dropped without much fanfare. Clear the app cache in your phone settings, then force-stop and relaunch. If that doesn't help, uninstall and reinstall from the official store — a corrupted local database is a common culprit after interrupted updates.
This usually points to a session conflict or a cached token that's gone stale. Log out from all devices via the account settings on the NS website, then clear your browser cookies and try again. If you use a password manager, double-check that it isn't autofilling an old password. Account lockouts can also happen after several failed attempts — wait 15–30 minutes before retrying or use the password reset flow.
The balance displayed in the app sometimes lags behind reality, especially right after topping up at a machine. This is a sync delay on the backend side. Wait a few minutes and pull down to refresh. If the balance still doesn't update after 10 minutes, log out and back in. Persistent issues usually resolve themselves within the hour, but if you need confirmation urgently, check a physical ticket machine at the station.
A blank results screen in the travel planner is often caused by a poor mobile connection rather than a server outage. The planner makes several API calls simultaneously, and a weak 4G signal can cause them to fail silently. Switch to Wi-Fi if available, or reload the page. If you're on the website, disable any aggressive browser extensions that block scripts, since the planner relies heavily on dynamic content to render routes.
Go into your phone's notification settings and confirm the app has permission to send alerts. iOS in particular tends to reset these permissions after a system update. Also check that battery saver mode isn't restricting background activity for the app — this is a frequent issue on Android phones from manufacturers like Xiaomi or Samsung that apply aggressive power management by default.