Transaction Online Authorization

A payment terminal needs to check with the shopper’s bank to confirm if the transaction can be processed. To do this, it connects to the Adyen platform using your network.

If your network connection is temporarily unavailable, the terminal will refuse the transaction with the reason: “Failed to go online.”

How to Resolve and Prevent this

To resolve the "Failed to go online" error:

• Run a network connection test on the terminal to confirm it is connected to the network.
• Check that your network follows our general network recommendations.

Offline Processing

If offline payments are enabled, you can continue to make point-of-sale payments even with a temporary loss of internet connectivity.
For more information, view our article on offline processing.