Hello,
I would suggest starting by updating the firmware of the device to the latest. v7.3 had some issues with the WiFi on RUT9xx devices, so this might be related.
Secondly, could you clarify if this troubleshoot file was generated after the issue reoccurred? Logs on our devices are stored in RAM, and when the device is restarted, all of the previous logs are lost. I would recommend generating the logs once the issue reoccurs and before restarting the device.
However, if the event is captured within the troubleshoot file, perhaps you remember the approximate time when this happened?
Best regards,
DaumantasG