There is not much maintenance! I bought two UC400ETH controllers and for months I can not finish the configuration of the first one. I will talk to as many people as possible, and I will convince them that they do not expect anything good if they act as lightly as I do. Think it's time to give up .I bought
this one to bet the Chinese. Have achieved something, although their controller is very easy to configure and works great. For almost the same money! Shame gentlemen, sell something you do not support!
Excuse me for my Google English !