Could you please provide clarification on whether this issue is consistently occurring or if it happened only once?
Does the device has stable internet connectivity? Next time when the issue occurs, could you navigate to devices in RMS and update the list?
Is the device still online?
Even though the firmware is quite new, I would still suggest updating to the latest firmware version as there were some fixes related to RMS functionality in the latest firmware.
Have you made any configurations on the device, or are all the settings still at their default values?
Would it be possible for you to try restoring the device via the following commands from the CLI?
firstboot
reboot
Also, it is important to note that this is a public forum and there is no way for us to share files or information privately. For example, troubleshoot files, RMS account information, serial numbers, etc. Therefore, if you have the opportunity to communicate with us directly or through your sales manager, I would strongly advise you to choose that option. Doing so will enable our team to assist you more effectively.