IP Cameras (Dlink) - keeps disconnecting

I have three IP Cameras connected to my Vera Edge. They have worked fine, but lately (after I replaced it with a new one) one of them keeps disconnecting. When it stops working the IP number field is empty, and it starts working again when I enter it again. But after a while it stops working again (and the field is empty). The IP number does not change.

Anyone have a similar problem?

Go to the Advanced Settings of the camera and remove the MAC address. This should fix the issue.