Sometimes this error is caused by a bug in older firmware, where the system miscalculates the decoding load.
Hardware chips can only decode a fixed number of megapixels at one time. For example, an entry-level NVR might decode four 1080p streams simultaneously, but only one 4K stream.
| Device / Software | Typical max playback channels (newer models/firmware) | |------------------|--------------------------------------------------------| | iVMS-4200 (v3.x+) | 4–8 (often 4 by default) | | NVR local HDMI/VGA | 4 (for 8/16-ch NVR), 2 (for 4-ch NVR) | | Hik-Connect app | 4 (some models 8) | | Web browser | 1–2 (depends on browser & plugin mode) |
: Previous playback sessions that didn't close properly, leaving "ghost" streams active on the NVR/DVR.
This comprehensive guide breaks down why this error occurs and provides the latest, most effective solutions to fix the issue, whether you are using iVMS-4200, a local monitor, or the Hik-Connect app. What Does This Error Mean? Sometimes this error is caused by a bug
High-resolution streams (4K) consume more "outgoing bandwidth." If the NVR's limit (e.g., 80 Mbps) is reached, it will refuse to open additional playback channels . 4. Troubleshooting and Solutions If you are facing this error, follow these steps in order:
[Camera Stream] ──> [ NVR Hard Drive ] ──> [ Hardware Decoding Chip ] ──> [ Stream Limit Reached Error ] │ └── Overloaded by: High Resolutions, Multiple Users, or Zombie Sessions The error typically triggers due to three main constraints:
Hikvision NVRs have a feature called . This attempts to play back every camera you have selected at the exact same timecode.
| NVR Series | Max Recording Channels | Max Playback Channels (New Firmware) | | :--- | :--- | :--- | | | 4–16 | 4 | | Turbo HD (DVR) | 8–16 | 8 | | I-Series (Pro) | 32–64 | 16 | | M-Series (Deep Learning) | 32–64 | 8 (Dual 4K) or 16 (1080p) | | E-Series (Value) | 16 | 4 | | Device / Software | Typical max playback
are updated to the latest versions. Older firmware (pre-v3.4.80) is known to have stream-handing bugs that trigger this error. Close Other Sessions
The quickest solution is to reduce the number of playback channels. When using an NVR locally:
How to Fix "Hikvision Maximum Number of Channels Under Playback Reached"
Go to > System > Maintenance > Upgrade on your NVR to apply the file. Summary of Channel Limitations by Model Tier NVR Series Max 4K Playback Channels Max 1080p Playback Channels Value Series (Q Series) 1-2 Channels 4 Channels Pro Series (K Series) 2-4 Channels 8 Channels Ultra Series (I Series) 4-8 Channels 16 Channels it is usually a limitation of
The issue is rarely a hardware failure. Instead, it is usually a limitation of , bandwidth , or connection limits .
Open the device web browser configuration page and go to .
Do not select the "All Cameras" checkbox when entering the playback menu.