What happens when the Gateway Connect loses the internet connection? (Fail-Safe)

Charging sessions, which are active when the connection is lost, will continue until the vehicle stops the session.

New charging sessions need to be authenticated by a CPMS. If the charger cannot communicate with the CPMS, then no new charging sessions can start until the internet connectivity is re-established.

The reason for that is that the load management uses a transparent proxy to send OCPP messages back and forth between charger and CPMS. If the proxy loses the connection to either a charger or the CPMS, then it will disconnect from the respective other. 

HARMON-E currently does not support OCPP message buffering.

Changing the default settings

The TxDefaultProfile is 0 A as a default to prevent charging sessions without active allocation by the load manager. If a charging session is active, the load manager actively allocates charge currents via a TxProfile.

The TxDefaultProfile can be manually changed to any value higher than 0 A to allow charging sessions without the active intervention by the load manager with a TxProfile.

Read how to do that here:

How do I change the minimum charge currents for chargers?

Setting up a new fail-safe

If your charging station allows you to set up free vending while it's lost the connection to the CPMS, you can combine such a setting with the minimum charge currents (change TxDefaultProfile) described above.

Changing the default should only be done by experts as it increases the risk of overload and damage to your electrical equipment, if not done correctly!