Is anyone else have issues with their CUBE "falling off the network"? 

It becomes unpingable from LAN (and you can not ssh or load http interface).  Also Awesome Miner monitoring software shows it as Disconnected; that is how I initially noticed this was happening.  It DOES however continue to mine.

I do not believe this is an issue with my local network, I have other miners (S9s, A4s, mini's, quads, A900s) and never had this problem with any of them before.

EDIT:: I assigned it a static IP and it has not dropped off the network for 48hours.

Mining4Bacon