Starting in firmware version 23.12.1.56, the watchdog system inside the Digi router will automatically re-power the cellular modem inside the Digi router if the modem is not initialized for more than one hour, and reboot the entire Digi router if the modem is un-initialized for more than 2 hours.  Please read the release notes for information on disabling this option.

23.6 introduces an improved and redesigned Surelink. Some configuration will not be migrated. Please refer to the release notes for additional details and migration considerations