This isn't going to help, but I have two cams on the SAME firmware, and one live view works and one doesn't.
Does work:
Device Type: IPC-HDW5231R-ZE
System Version: V2.800.0000015.0.R, Build Date: 2020-04-30
WEB Version: V3.2.1.887241
ONVIF Version: 16.12(V2.4.3.822559)
Does not work:
Device...