Hey
I just bought 4 D-Link 930 cameras, they are connected to an android hotspot that hosts an FTP server. They are set to send 2 pictues per second to the server.
The problem is that the cameras send for a while, but then may go 1-10 minutes without sending anything. This happens very often, and a lot of information is lost. Out of the 4 cameras there's nearly always one that is not sending and sometimes none are sending.
It seems highly erratic and they suddenly begin working again, but it always stops later on.
I know that they are taking pics because i can see them on the URL, but they really do seem to stop sending them.
I don't think its the hotspot because they do the same thing on my router. The hotspot seems fine and is very quick. I tried 3 hotspots and it happens on all of them.
Is there anything i can do to improve their performance? Can i fetch the images from the URL using Java? I tried to fetch the stream and it did not work.
Could some sort of LAN email server help?
Do the cameras have some sort of periodic refresh feature? They seem to be a bit synchronized when they begin to send again, but they still stop erratically.