Your Xbox Series S may be randomly turning off due to three potential factors: hardware issues, network conflicts, or software problems. Firstly, check if your console is overheating by ensuring proper ventilation. Secondly, make sure you are using the correct power source for your Xbox Series S. Lastly, verify if your console is set to turn off automatically and disable this feature if necessary. If the issue persists, you can try performing a factory reset to see if it resolves any software glitches. However, if none of these solutions work, it may be beneficial to contact Microsoft for further assistance. Keep in mind that these troubleshooting steps apply to both the Xbox Series S and Xbox One consoles.