Hello dear members of this forum. I am a happy owner of a P3A for 2 months now. I have flown 21 times with my phantom and i have at least 20 years of experience in flying RC objects, all kind. I am not pleased with the range of my P3A. The longest fly I have ever managed to accomplice is 500 m and the maximum altitude is 150 m. I flew over cities but in deserted places too. I use it for semi-professional purposes, for example to photograph hotels. More specifically my problem is about filming 2 hotels. At the first one, after 100m (length or/and high) I have faced all control suddenly (NO SIGNAL sign) and immediately RTH. At least 4 times, at different spots of the hotel. At the second after 100m (length or/and high) I received red signal , but no disconnection , so I returned back. Both of them have a wide network of WiFi transmitters and the first one have a big dish that receives WiFi from a ground source. So the question is : do my phantom has a problem or all this situation is common and expected. Is there any solution to solve this situation and fly higher and longer? Thanks in advance!