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# Enable Multicast When Camera is Available but Disconnected

If the camera status is available and disconnected, you can set "Controller" or "Controller and Receiver" as the Software's role.

1. Right-click a camera (available and disconnected) on the device list to open the right-click menu.
2. Click Multicast Setting to open the Multicast Setting window.
3. Select Controller from the Role drop-down list.
4. Click OK to save the role settings.

   The camera will be connected and Multicast will be enabled automatically.

5. Optional: Edit the IP address and port.
   IP Address

     The IP address of the selected camera.

   Port

     The port No. of the selected camera.

6. Click OK to save the settings.

   After enabling Multicast mode of a camera on Software A, if the camera is remotely added to Software B, or the camera is on the same local subnet of the PC on which the Software C runs, the camera will be displayed as (when disconnected) or (when connected) on Software B or Software C. And the role of Software B and Software C (relative to the camera) will be "Data Receiver".