Are you running the latest version, available from http://www.mattercontrol.com/#jumpMatterControlDownloads ?
If you can't connect with either MatterControl or Cura, then the problem is most likely with the board. We've seen this occasionally with Robo printers; contact their tech support for a replacement board.
Meshmixer is also an free program this is great for cutting models models. You can look up tutorial videos on how to do it fairly easy.
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