This is either a temperature issue or a power issue, make sure the miner isn't running too hot or too cold, try not to set a static fan speed to allow the miner to get to the temp it finds best, also, if your voltage is below 220v it could cause some issues, the last thing you should try would be a different firmware.
Thank you for your time mikey, our local voltage is 220v and the room temperature is between 24-31 degrees not more than this. Should I try a different firmware?? 🤔
And in the other thread you mentioned something I believe it's true about bitmain doing less with the S19s power supply, what's your recommendation if am planning to leave the bitmain stuff (in the near future)
Regards