Report of a strange behavior with android 5.1.1 and before on my S6 Edge

The problem: The first 3 times, while i was online trough wifi on battery modus, it happened to me that of all sudden, the phone tells me, the docking station is connected, while i don't have it connected, not even have a docking station. And then the cursor jumps and it trys to play crazy until i cant operate it and need to close the phone. The first time when it happened, i saved my files and flashed the stock android 5.1.1. But it didn't solve it. The trouble came again. Temporarly i found a solution, i had to remove my custom launcher(i tried many! Also the stock one. The only difference is: Here i only have to clean the cache! ) while in safe mode and when restart all was fine. I checked with almost all free antivirus and antispywares apps, but there was nothing. It also removes allmost all icons after restart and then i have to install again a launcher and the icons will reapear and i need to rearange them again.

The best temporarly solution: After the 3 times, i managed to solve the problem, while leave it untouched and close wifi. It calms down that way without closeing the phone, don't know why. Don't know if its a security flaw, or just because i stay long on wifi. But it happens always when i browse the web and even with all browsers, stock and firefox and chrome. And then it continues to work normaly after i log in to my phone again, while the browser were i was surfing, i encounter as crashed, and i can go wifi again. I don't even know if its a hacking attempt.

But i just wanted to share this, it may help some, and i hope there will be a solution for this, thanks.