This error generally occurs when the system's hardware or software resources for remote streaming are fully occupied. It doesn't always mean you've reached a literal channel count limit; it often indicates that existing "slots" for data transmission are stuck or over-utilized Common Causes Active Sessions:
The "maximum number of channels under playback reached" error is a common roadblock in Hikvision systems, typically occurring when the device's hardware or network resources are stretched beyond their pre-set limits. This often happens because the NVR or DVR has a finite number of simultaneous remote connections or decoding resources it can handle at once. hikvision maximum number of channels under playback reached