I have a similar problem with sub-stream remote playback.
I can playback sub-stream recorded videos on IVMS 4200 from a remote pc (on a friends house for examble),
but I can't playback sub-stream recorded videos on IVMS 4500 from my phone.
I get a
"Not supported by the device" message every time I try to choose
Custom instead of
Clear.
On live view I can choose either
Crear,
Fluent or
Custom without having any problem
.
NVR (7716NXI-I4-4S) at page 13, under
Recording, Capture and Playback says
"Supports the playback by main stream or sub stream"
and also "
Supports playback by transcoded stream".
At page 71:
"Stream Type: Main stream and sub-stream are selectable for recording"
Recording is set to both main and sub-stream.
My phone is a Samsung, Android 9, and NVR is running the latest firmware update.
Any suggestions?