If you manage a security system using Hikvision DVRs, NVRs, or the iVMS-4200 client software, you may have encountered a frustrating pop-up error: "Maximum number of channels under playback reached."
Contact Hikvision Support: If you're consistently hitting the limit and need more channels, consult with Hikvision support or your device's documentation. There might be a firmware update or a setting adjustment that can help. hikvision maximum number of channels under playback reached
Always check datasheet section: “Simultaneous Playback” – often omitted, but testable via SDK. Export required time ranges for offline review or
To resolve or mitigate the error, consider the following solutions: or the iVMS-4200 client software
Lower Stream Resolution: Set the "Live Playback" or "Sub Stream" resolution to 720p or lower to reduce the bandwidth and decoding load on the recorder.
Excessive Bitrate/Resolution: Streaming footage in 4K or high bitrates consumes more resources. If the recorder is already busy recording high-resolution video, it may not have enough "decoding resources" to play back several channels at once.