this has been bugging me for a while now and im not sure if its a me problem or a hardware thing. basically im out flying and somewhere around 200-300 feet away the connection just drops for a few seconds, sometimes comes back on its own, sometimes i have to bring it back closer before it reconnects. its not every flight but maybe like one in three which is annoying enough that im starting to not trust it.

i dont think its interference because ive tried it in pretty open areas and it still happens. im on the latest firmware i think, checked a couple weeks ago. the controller battery is usually around 70-80% when it happens so i dont think thats it either. not sure what other info would even be useful here, the Nano is just my casual go-to bird so i havent dug super deep into the settings or anything

had something similar on mine a while back and it turned out i had wifi on my phone causing interference with the controller signal, the Nano uses 2.4 and 5.8 and if your phone is actively connected to a busy wifi network it can mess with things more than you'd think. try putting your phone in airplane mode and then turning bluetooth back on just for the controller connection and see if that changes anything. sounds dumb but it fixed mine completely.

also worth checking if the antennas on the controller are oriented correctly, i know that sounds obvious but ive definitely forgotten to adjust them before a flight and paid for it

what phone are you using with it? i ask because ive seen people have weird connection issues with certain android versions and the Autel app doesnt always play nice. also are you getting any warning in the app before it drops or does it just go straight to disconnect? that might help narrow it down a bit