what is the firmware version you have on them. There is nothing available as download from manufacturers site

soft_v6.0.20.25
i have a little problem with the other one.
the website seems buggy, it gets set to chinese,
i can switch it to english but the custom data in cgminer config is fu*cked up. cant read or change anyting,
i just saw the ethernet connetion with a red warning in overview and device info all "sunbest"
now i cannot connect to website anymore
miner is still hashing.
guess i need to manualy restart it if it stops hashing xD
I had the same problem (red ethernet flag and broken clocks on Dashboard, but all miners hashing well). After hard restart Dashboard accesible but before 24h problem is back.
Today I was on Skype with Lynn, and via TeamViewer sesion, they upgrade my miners to soft_v6.0.20.28. I just looking if it solve a problem. Let's see tomorrow.