Video transmission fail in SIYI ZR10

Hello Guys…

I’m having trouble connecting SIYI ZR10 and H16 pro.

The issue is fail to establish video transmission via H16 pro receiver’s LAN port. Gimbal and zoom functions are working normally but can’t receive video. Its showing “Waiting for video” in QGC.

How can I fix this issue? Is there any configuration wrong?

Copter Firmware version is 4.3.2(Quad).