---
title: Is a Wi-Fi or mobile internet connection required for scanning?
slug: en/is-a-wi-fi-or-mobile-internet-connection-required-for-scanning
createdAt: 2024-09-02T13:26:59.227Z
---

It is **recommended** to have a stable Wi-Fi or mobile internet connection when scanning tickets. This ensures that access control runs smoothly.

Additionally, it is possible to scan tickets offline using the Ticketmatic scanning app. Since this takes place offline, there are a few limitations:

- Tickets can be scanned multiple times. Without online synchronization between the scanning app and Ticketmatic, the same tickets can be scanned more than once.
- There is no up-to-date information available in Ticketmatic about the number of **present** attendees in the venue.

:::hint{type="warning"}
**Important:** If you choose to scan offline, make sure to synchronize the event in advance using Wi-Fi or a mobile internet connection. Without this synchronization, barcodes cannot be loaded into the scanning app.
:::

To ensure that the (offline) scan results are still sent to Ticketmatic as soon as an internet connection is available, follow these steps:

1. Exit the scan screen and return to the **event list**.
2. Check if there is an **internet connection**. The scanner will notify you if no connection is available.
3. Reload the **previously scanned event**. This forces the scanner to send the saved scan results to Ticketmatic.
4. Check the **scan dashboard** of the event in Ticketmatic to confirm that the scan results are appearing.

By following these steps, you can ensure that all scan information is correctly transmitted to Ticketmatic once a connection is available.

***

[How can I check if my scanner is connected to the internet?](docId\:qJYCgvD3uov0I7VSTKGqq)