How to Fix the "Maximum Number of Channels Under Playback Reached" Here are the step-by-step solutions to resolve this error: 1. Reduce the Number of Simultaneous Playback Channels
: Close playback on other mobile devices or PC clients before starting a new session. Stuck Network Connections
Different platforms impose strict limits on how many channels can be viewed or played back at once:
Select your cameras and slightly lower the , Frame Rate (FPS) , or Max. Bitrate . How to Fix the "Maximum Number of Channels
If you are receiving this error specifically in the mobile app, ensure your platform access settings are correct.
: Using iVMS-4200 on a PC and Hik-Connect on a phone at the same time for the same device can trigger this restriction. Recommended Solutions
Hik-Connect users often report that failed connection attempts (where the app hangs at 90% load) may leave "ghost" connections open, eventually consuming all available streams. A system reboot resets these connections but is only a temporary fix. Bitrate
Upgrade the firmware via the NVR local menu or web browser interface to optimize system resource allocation. Summary Checklist Where to Change Screen / App Drops processing load immediately Switch to Sub Stream App / iVMS-4200 Uses lower resolution for smooth playback Turn on H.265+ NVR Camera Settings Drastically reduces file sizes and strain Enable Hardware Acceleration iVMS-4200 Settings Uses your PC graphics card to assist decoding
A simple restart can clear temporary memory issues (cache) that might be causing the processor to think it is overloaded. Preventative Tips for Large Systems
Click to clear the temporary cache and force all active connections to reset. 2. Lower the Remote Playback Resolution System Capabilities Matrix
If your recorder supports (often called "Fluency First" or "Substream priority" in playback settings):
| NVR Model Series | Decoding Capability/Resolution | Max Sync. Playback Channels | | :--- | :--- | :--- | | DS-7732NI-M4 (M Series) | Up to 32-ch@1080p | 16 | | DS-7600NI-I2 Series | 4-ch@8MP, 8-ch@4MP, 16-ch@1080p | 8 (for the 7608 model) | | DS-7100NI-Q1 Series | N/A (uses generic playback limit) | 4 |
: Download the latest firmware for your exact recorder model directly from the Hikvision Support Portal . Additionally, open your smartphone's app store or the official Hikvision App Store to install the newest version of the app. System Capabilities Matrix