Someone already exprienced these two ?

Milesight MS-C2182-P
and

Milesight MS-C2163-PNA
That works for both of them.Before I try to get a camera to work on Zoneminder, I try to look at it using the Swiss Army Knife of video tools, the VLC Player. Just download the player and put the following url into the File/Open Network dialog box:
rtsp://admin:admin@yourzmserverip (eg. 192.168.10.86)
You should see pictures coming out of your camera. If you don't, then I am not going to be able to help you much. The camera does respond to pings, so you might try pinging it. If you can't ping it, you are not going to get very far.
I try to look at it using the Swiss Army Knife of video tools, the VLC Player.