Ok, seeing some weirdness here, and could use some help.  I keep feeling like I'm missing something obvious.

I have 2 cubes.  They occasionally reboot themselves.  What's odd, is that both of them do it within a minute or so of each other.  They'll run for hours at a time, and then stop sending things to the proxies, followed by reboot.

I've tried them both to the same proxy, I've tried them to two proxies on the same machine, I've tried them to different physical machines, and I've tried them to different virtual machines.  I've tried one power supply, and I've tried 2.  I've tried them on a separate network switch (2 cubes and the proxy on the same switch, with an "uplink" to my main network switch), and I've tried them on the main network switch.  Same thing in all cases; run for a while, and then both of them reboot withing a minute or so of each other.

This "feels" like a communication issue, but I haven't found it yet.  I'm not running a consumer router, but rather an open source PC based router / firewall, so I don't think it's a throughput issue to the internet.  I've just tripled the speed of my internet drop, and it's "business class" as opposed to residential (no caps, no blocked ports).

It's starting to affect my earnings a little, as when they happen to be rebooting at the end of a block, the pool I use penalizes me fairly heavily.

In short, I'm a little stumped.  That's actually a little embarrassing, as I'm a network admin / IT manager for a small company, and I'm supposed to be the guy that solves these sorts of issues.

Thoughts?  Any and all help greatly appreciated.

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