Have you tried to check the system for logs?
I don't know how to pull out the logs from this unit so I think it would be better if you bring this issue to futurebit support section from this link below.
- https://bitcointalksearch.org/topic/official-futurebit-apollo-btc-softwareimage-and-support-thread-5340015
I have not tried a different pool, I might try that to see what happens.
It seems like its mechanical though. When it happens, the fan gets real loud, and the machine gets "knocked off the network". When I try to turn the monitor on to reset it, the monitor doesnt get a signal from the miner, so I have to turn the power off manually (such as pulling the plug), to reboot the miner.
thank you for your help, I think I will email futurebit to see if this is known issue