the Rpi reboots 2 times/day, and when it does i've to unplug it and the modem, plug in the modem and when its ready plug the Rpi 
if i dont do this, the cgminer never starts again, because it cant find an IP, idk
if i'm not at home do to this, i lose mining time
if i dont do this, the cgminer never starts again, because it cant find an IP, idk
if i'm not at home do to this, i lose mining time
I find with mine that when it boots up the ntpd sets the time. once that has happened if you restart the miners (click submit on the pools page) it seems to fix up the issues with the graphs and not seeing the devices Mh/s
Also mine ran overnight . so one now has 12 hours uptime and the second has about 7.5Hrs since I changed the hubs around.
it worked
thanks
now only have to expect that dont reboot