Monday July 17th we received reports of some chargers connected to OCPP disconnecting and reconnecting again.
As nothing had been changed at our end the previous few weeks, it was problematic to troubleshoot. It was identified as an issue with the OCPP bridge.
Wednesday July 19th the issue was resolved. The instances of the OCPP bridge was on a node that was under heavy network usage. We we able to shuffle som workload around resulting in a stable service