I've got audio and video working for 4 of my 5 C500 cameras. For one of the cameras, the audio does not work. I get this error when turning on audio in Annke Vision software, "Camera1_North East Opening sound failed. Audio encoding error.(Error code: Guarding Vision.Video.C.exe[1624].)"
Audio...
Thank you for mentioning Tailscale. I'm buried behind AT&T CGNAT on my rural hotspot. Just set up Tailscale and am thrilled to be able to see my cameras remotely finally!