Can't see the main stream video

Author 谢周轩Updated 2025-10-14 14:15:50Doc ID 233372 words · 1 min readView original ↗

1. The Problem

Real- time preview cannot see the main stream video;

2. operating instructions

[CMSServerV6 use port]]
6601 tcp (location resolution server port)
6617 tcp
6602- 6612 tcp udp
6630- 6635 tcp
2121- 2162 tcp
WEB Port TCP

3. Precautions

Pay attention to the 6630 port. If the real- time preview cannot see the main stream video, check whether the 6630(TCP) port is open;
Server Port Mapping Connectivity Detection Description: https://help.cmsv8.com/helpCenter/doc/index.html?isStudy=1&docType=1&docId=58&type=1