Hello, today an s3 of mine stopped working, when I turn it on the fans immediately start running at full speed, and it does not hash, blades and fan speed don't appear on the miner status tab.
Does anyone know what could happen?

Thanks in advance
you may have to input a dns server ip in manually.
Check DNS IP use google to test 8.8.8.8
Or, likewise, input the pools by ip address and if it mines then your dns is bad.
looks like your servers are up an alive. I would check the wiring something may not be connected if you have your miner overclocked set it to default and restart. A shot in the dark would be to reflash firmware and hope their was a bug.
thanks for the help, done all that and not working,
The red light near to the ethernet port is always on, if that helps
Do the lights for Ethernet stay on orange and green or are they off. You may have a faulty control board. You can boot up into your miner but your control board is not connecting to your hash board properly meaning it would be the connectors from you hash-board to your control board or the control board itself.