DEAD DEAD DEAD - this is what I see when I wake up this morning for the second day in a row, getting only about 12-18 hour uptime before my devices all go DEAD and cgminer does not restart itself, I have to manually restart.
I am having an issue with cgminer 3.12 on windows
Using 9 babyjets plugged into a 10 port usb hub, all are detected eventually, but it usually goes up into HFB 40 to HFB 50 so it takes about 4-5 disable/re-enable cycles per device on startup.
If I reboot cgminer, after the all DEAD status, then it works for just a few minutes before I start to see the miners drop again.
IDLE for more than 60 seconds - declaring SICK!
Attempting to restart
So hotplugging everything will give me another 12-18 hours (turn off and on USB hub), but this is crazy that I have to hard reboot so often.
I have the exact same issue with cgminer on windows. I had to switch back to the RPI to get reasonable uptime.
Windows cgminer gives a bit faster hashrate, but not worth it if it's down for hours a day.
There is a known problem with the USB stack on windows. This is a cgminer known issue, which is why we recommend a linux-based mining solution and provide the RPI with every BJ. The best you could do is make some sort of a script that restarts cgminer, or better yet windows itself, after mining stops or even just after 8 hours or so.
Hopefully once we get cgminer and the firnmware stable, we can look at possible windows solutions. Windows in general is not a stable platform, which is why most servers on the internet don't use it.
-Phil