No. All the cameras I receive I take straight out of the box, upload a config file so that all cameras have the same video and audio settings, and only other thing I need to change is IP addresses. All the cameras that this is happening to are on totally separate networks with totally separate IP's.
All we do is receive the video stream. There are no scripts/controls/softwares hooked up to the actual camera. The only thing we receive and forward is the video stream.
We have about 45 camera out there and this is only happening to about 4 of them. All settings are the same as the other 41 that are not doing this. Could it just be a hardware issue with a select number of cameras?
tangent - I also have other cameras that do not have anything in the closer foreground and it is still zooming in/out like the video.