vapourminer, or any other pi-heads out there, I searched the forum here and elsewhere and can't find an answer.

On my either 2B or 3b (I'm pretty sure 3B) I run two copies of cgminer concurrently - one runs 4 sticks at 425, and the other runs three sticks at about 350 or 375, whatever I can get them cranked to.

POWER for the pi comes from an unpowered (port on-off switchable) hub connected to a powered 2.0 hub, as does the on board pi port go to the powered 2.0 hub.  THe 2.0 uplinks to 2xSuperbpag 3.0 running sticks in alternate slots, staggered for maximum airflow, with four fans going on.  Two fans are run from the *2.0* hub, and the other two from the secondary 3.0 hub (where the three slower sticks sit).

Here's the issue:

If I run both simultaneously, I can almost always count on loss of network connectivity within 24 hours.  I can restore it by unplugging and replugging the network cable, and there's some talk of ifup/ifdown commands to refresh the DHCP lease, or setting the IP static.  I Also added eligius to the hosts file to see if that helped, but it didn't.  I lose the ability to talk to eligius and im down until I notice it.

HOWEVER - if I just run the 4 sticks at 425 its rock solid for days. (the other three are plugged into their superbpag but the hardware refresh is 0'd out or they are zombied on my active cgminer)

Any ideas?

Thanks,

drupie