You can get the source code in our github then build it. Anw, you should follow the steps in our discord #faq
Already done, it worked perfectly. But yesterday i restarted client and now can't connect to any node.
Can you post any active nodes?
snowgem.org/nodes with current active nodes will be very usefull.
2018-02-13 10:52:42 connect() to 207.246.67.167:16113 failed after select(): Connection refused (111)
2018-02-13 10:59:54 connect() to 45.77.160.169:16113 failed after select(): Connection refused (111)
Is it possible test master node for ubuntu 16.04? I have server for it.