Who can help me? I have three Whispers. 2 working properly. 1 who has worked last year only ‘works’ when connected to USB. Loading works fine. Connecting will work. But when placed in the garden it doesn’t work anymore and loses connection and no lights etc. 

What is wrong? WiFi signal is good outside. He is fully loaded? Is the battery broke? He’s only one year old….. one summer season outside. Whole winter stored inside.

Please help me.