The intermittent loss of power could be due to several factors. Firstly, ensure that the power supply is receiving adequate input voltage and that there are no fluctuations or interruptions in the mains power. Additionally, check the wiring connections between the power supply and the connected devices for any loose or damaged connections. It’s also important to verify that the load on the power supply does not exceed its rated capacity. If all connections seem secure and within specifications, consider checking for any potential environmental factors such as excessive heat or moisture that could affect the operation of the power supply. If the issue persists, it may be necessary to replace the power supply unit.