Hey all and thanks for any help given, I have a Phantom 2 built by heliguy UK, so all set up correctly and tested. Been playing around with it a while now and am now having the following issue... GS Running on laptop (Windows 7 64bit), RC on, power on P2... in open space about 10-15m away from where I'm set up with laptop ect... Flashes green fast as normal having found Sats for home location. Go to laptop and click connect, does handshake and GS moves to P2 location on map and all working fine. Take off using RC and get to about 30-40m altitude, GS looses connecting with P2 and reconnect does not work. Sometimes restarting GS on laptop fixes issue but then after staying hovering at the same location (20-30m high) for say 5mins looses connection again. Just keeps dropping out, never had this issue when using iPad GS before and successfully completed 1km flight, but now its dropping connection and having same problem with iPad. Any help or suggestions would be great! Want to get GS working with my laptop properly and start flying!