The "Maximum number of channels under playback reached" error in Hikvision systems arises when NVR/DVR units exceed their maximum simultaneous remote streaming, bandwidth, or channel limits. Effective solutions include rebooting the recorder to clear hung sessions, updating device firmware to version 4.60+, and reducing stream quality to "Fluent" mode to lower resource usage. For more troubleshooting details, read the guide at Hikvision Support Portal Hikvision Support Portal .
Entry-level NVRs often support playback of only 1 or 2 channels at 4K resolution, or 4 to 8 channels at 1080p.
Bugs in older firmware versions frequently trigger connection limit calculation errors.
Security systems have finite processing power. Decoding recorded video requires significantly more resources than displaying a live view. The error triggers due to three main constraints: 1. Hardware Decoding Limitations The "Maximum number of channels under playback reached"
This issue usually happens when you try to view too many video feeds at the same time on the Hik-Connect mobile app or the iVMS-4200 computer software . Hikvision hardware limits the number of active video streams to protect its processor and network bandwidth. Why Does This Error Happen?
The quickest workaround is to change how you search for footage.
Your system has different limits depending on where you are watching the footage: Entry-level NVRs often support playback of only 1
| 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) |
In Playback mode:
Always check the product datasheet for “Simultaneous Playback” specifications before purchasing or expanding a Hikvision system. Installations with multi-channel recorders
Close 2 playback windows, or use the NVR’s local monitor for multi-channel playback.
Playing back all cameras in full high-definition (Main Stream) uses more resources than using the lower-resolution Sub-Stream.
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
Adjust your default resolution setting to 720p or lower .
Who’s affected The issue has been reported across a range of Hikvision products and firmware versions, affecting small-business and enterprise users alike. Installations with multi-channel recorders, central monitoring stations and security teams that frequently review multiple camera feeds at once are most impacted.