I am able to view my cameras when I am at home, but when I am at work it stops connecting.
If you have a P2P DVR or NVR (a unit with a QR code), try rebooting the DVR/NVR. If Zsight still won’t work remotely, you may need to contact Zmodo Technical Support.
If you have a non-P2P DVR/NVR (any unit without a square QR code), you will need to Port Forward through your router to allow you to be able to see your cameras when you are not at home. A tutorial can be found here --> http://kb.zmodo.com/NetworkTutorial/landingpage.html
Even with the QR code port forwarding was necessary for me. Google port forwarding for your router for directions.