GS516TP randomly rebooting

We have two GS516TP switches installed and both seem to randomly reboot. When looking at the logs one had rebooted just under 7 days at the last check, but another had rebooted just 18 hours before. It's a fairly basic setup within two racks of audio equipment (distributing DANTE networked/IP audio) with each individal device directly patched into a port. A number of DANTE 'outreach' plates are in use hence the need for the POE. There's no massive amount of data flying around and there's no loops between gear and/or other switches. All should be reasonably sensible. There's no information anywhere on random reboots for this model and has the current firmware. All new to this so if there's anything info that I need to include and haven't I'll gladly get it.