opc: Crash on working with remote node

I trying to connect to the remote server.

client := opc.NewConnection(
		"Prosys.OPC.Service", // ProgId
		[]string{"192.168.7.51"}, //  OPC servers nodes
		[]string{"Bucket Brigade.ArrayOfReal8"},
	)
defer client.Close()

And I get a panic:

panic: TryConnect was not successful: Connection failed


goroutine 1 [running]:
github.com/konimarti/opc.NewConnection(0x83bbd0, 0x12, 0xc0000331b0, 0x1, 0x1, 0xc00003d500, 0x62, 0x62, 0x853678, 0xc00006c000)
	C:/projects/opcda2opcua/src/github.com/konimarti/opc/connection_windows.go:335 +0x269
main.main()
	C:/projects/opcda2opcua/src/gitlabinternal.litmusloop.com/loop-edge/opcda2opcua/main.go:10 +0xec

What I was doing wrong? Matrikon Explorer works with this server.