If you are viewing via iVMS-4200 or Hik-Connect, your internet upload speed or the NVR’s network capability may be too low to handle multiple playback streams [1]. 4. Limited Processor Capability (DVR/NVR)
This means if your security cameras are set to record at 4K resolution, . If you try to play a 5th camera, the "Maximum number of channels under playback reached" error will appear. To play back more cameras simultaneously on that specific hardware, you must lower the recording resolution of the cameras in the system settings.
In iVMS-4200 or the web interface, right-click on the live view/playback screen and select "Sub Stream" instead of "Main Stream". 3. Restart the NVR/DVR
Check NVR datasheet for exact decoding limits (e.g., 4-ch @ 4K, or 8-ch @ 1080p).
Exit the multi-screen playback view and close the cameras you are not actively watching. 2. Reboot the NVR/DVR hikvision maximum number of channels under playback reached
Outdated software is a primary suspect for many performance-related issues, including this error.
You cannot hack the hardware to increase the physical decoding limit. However, you can work around it intelligently.
When you play back recorded video, the NVR/DVR must allocate processing power (CPU) and bandwidth to decode, read, and stream the video data from the hard drive (HDD) to your screen. Every Hikvision unit has a designed limit to how many channels (camera feeds) it can playback at once.
The simplest solution is to reduce the workload. If you are trying to view 16 cameras at once, try dropping down to 4 or 8 cameras. If you are viewing via iVMS-4200 or Hik-Connect,
Go to the playback screen. Right-click on the camera window or the camera list and change the stream type from Main Stream to Sub-Stream (or Third Stream). Sub-stream uses a lower resolution, allowing you to view many more channels at once.
Lower the camera's resolution or bitrate settings in the configuration to reduce the load on the network. Use Proper Network setup:
Hikvision "Maximum Number of Channels Under Playback Reached" Error: Causes & Solutions
The local processor inside your recorder can only decode a set number of channels at specific resolutions (e.g., 4 channels at 4K, or 8 channels at 1080p). If you try to play a 5th camera,
You are at the physical NVR and have exceeded its local playback capability.
Previous playback sessions on mobile apps (Hik-Connect) or PC software (iVMS-4200) may not have closed correctly, leaving the channel "occupied" on the NVR.
are you trying to play back at the exact same time when the error pops up? Share public link