Haxe --connect 6000 is stuck on my new windows 10

I work with Haxe since 2009, from windows XP up to windows 7.
A week ago I bought a brand new Dell with Windows 10 built into it.
Installed HaxeDevelop and stuff, now when I’m trying to compile in HaxeDevelop, it says “Building started” for 10 minutes.
Suspected something, copied the command “haxe --connect 6000 blablabla” to console - it just never finishes! I wonder why… Please help, comrades!