Please also check that the following parameters have the corresponding values:
AuthorizeRemoteTxRequests: true (or 1)
HeartbeatInterval: 3600
MeterValueSampleInterval: 60
MeterValuesSampledData: Energy.Active.Import.Register (as a minimum)
StopTransactionOnEVSideDisconnect: true (or 1)
UnlockConnectorOnEVSideDisconnect: true (or 1)
WebSocketPingInterval: 30
The interval values are expressed in seconds and can differ slightly from the values shown here.
The StopTransactionOnEVSideDisconnect and UnlockConnectorOnEVSideDisconnect parameters are optional.