Why Adyen Payment Terminal is rebooting during the working process

December 31, 2025


Very common question from Adyen payment terminal users - “why my payment terminal is rebooting during the in the middle of the workday. It interferes with the workflow and I lose clients.”

It is required to reboot a terminal at least once a day in order to ensure your terminals continue to perform well and are using up-to-date settings and software. Terminal should perform a reboot at configured time. In Adyen it is called “restart hour”. By default it is set to the night time to avoid wasting time on this during active terminal use hours. But if the payment terminal is turned off during this “restart hour" the terminal will not able to perfom a reboot and do required maintenance.

The following important events happen automatically on the terminals during the “restart hour”:

  • Rebooting: for security reasons, the terminal must clear its cache regularly. To achieve this, the terminal reboots once every 24 hours at the restart hour.
  • Configuration changes: any configuration changes that the terminal discovered during a maintenance call, are implemented when the terminal reboots at the restart hour.
  • Software updates: if the terminal is set to automatically update to new releases, any software update that the terminal discovered during a maintenance call is installed when the terminal reboots at the restart hour.

More info can be found HERE.

Advice for Adyen payment terminal users

Leave your terminal on overnight - this will automatically perform all necessary maintenance, allowing you to keep it in working order for many years.