Hi, I have a problem with playing video with omxplayer. I start to play video with python script after boot (just read all files in directory and than playing all videos in loop - checking if omxplayer process is still active, if not, play another video). This script and video playing works well, if RPI is connected by cable to my router. If it is connected only on wifi to same network, sometimes it happens, that screen output is black. But all logs and processes are OK. No errors and python script and omxplayer processes are still visible in HTOP. Just screen is black.
Can anybody please help me what could be the solution, because I have this problem for many months (on RPI2, 3, 3+, always with newest Raspbian version)?