i have been using a shinecon controller and tello fpv app for a while now with no issues at all. So i took the descision to get a xiaomi my wifi2 repeater. first flight and setup went like clockwork.a few days ago disaster struck and i couldnt control the drone and had video loss . all while using the repeater. yesterday i first lost two props hitting a tree and then lost sight of the drone over the beach. I disconnected the bluetooth controller and pressed take off and thankfully it took off more or less where i pressed land. its amazing how quickly the tello can dissapear. so last night i resetted and charged everything and once again this problem. Without the repeater i can use the bluetooth controller and record at at 4 bitrate with screen recorder no problem and no lag. if i use the repeater i have to disconnect the bluetooth controller and only use the phone or else..... And then the breakthrough. in an earlier thread i followed the instructions and renamed the tello wifi because the repeater dont like dashes in the name. I can also now say that it dont like capital letters as well. so i renamed everything correctly, even the bt controller and have been busy flying last 5 hours with no problems. so i can also now recommend you check network names as well when problems start.