Two desktops and two mobiles are in one LAN network. Two mobile phone,one is android 4.1.1 and the other is android 4.2.2. I pair these two mobiles with my win7 desktop,but in the sync tab of mobiles,it always prompt 0 device online. I try to use BTsync in two desktops,it works well. And also i use send function with two mobiles,it works well too. The problem is the connection between mobile and desktop.It can't find each other. Any body can help me? Many thanks!