Dashboard can maintain event logs for up three months, which can be viewed for historical purposes.
To view logs older than 30 days:
Note: Event logs are tied to the Dashboard network, not stored locally on the device. As such, swapping devices will not affect the event log, but moving devices to a new network will cause their device logs to be cleared.
If a complete historical log is necessary, implementing a syslog server is recommended to maintain logs as long as needed.