N861B Series - 4K 16-Channel NVR with Smart Motion Detection

Model Numbers: N861B Series

Record and view impressive 4K video resolution with a cutting-edge recorder, providing you with superior detail and definition. When paired with Smart IP cameras featuring smart person and vehicle detection, this recorder can send motion-triggered push notifications caused only by people or vehicles. This provides only the most relevant motion alerts. Use the Smart Search feature to filter motion events by area, time/date, and person or vehicle, saving you time when reviewing footage. With convenient smart home and voice control compatibility, remote viewing, and smart motion detection, this recorder's quality and performance are unmatched.

Works with Google Assistant

works with Amazon Alexa

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Quick Start Guide

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Apps / Software

Lorex App for Android

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Lorex App for iPhone

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Lorex Cloud Client for Mac

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Lorex Cloud Client for PC

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Video Player for MAC

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Video Player for PC

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1. Lorex Cloud‎ Setup (For Recorders)

DVR / NVR - How to format your USB flash drive on your recorder

To make sure you can transfer files to or from your recorder, it is essential that you first format your USB flash drive on the recorder before moving any file.

DVR / NVR - How to manually upgrade the firmware of your recorder

If your recorder is connected to a network, it will automatically receive firmware updates.

DVR / NVR - How to Playback Recorded Videos on Your Computer

You can download recorded videos from your DVR or NVR to a USB flash drive and play them back on your computer. Depending on the file format of your video, you need the Lorex Player or the VL

DVR / NVR - How to Remove and Install a New Hard Disk Drive

The system comes with a pre-installed 3.5" SATA hard drive. You can replace the hard drive with one up to a maximum size of 8TB or 10TB (varies per model).

DVR / NVR - How to restore your recorder’s display resolution to factory default

This troubleshooting guide will help you restore your recorder’s display output to factory default so that you can restore your monitor’s live view.

DVR / NVR - Which Hard Disk Drive (HDD) is Compatible with Lorex Recorders?

The following FAQ details which type of hard disc drive (HDD) is compatible with Lorex recorders.

How to Change or Reset Your Recorder's Password (Compatible with Lorex App)

This article offers guidance on how to change the password of your Lorex recorder for security purposes or reset it in case you have forgotten it.

Lorex Fusion: Connect Your Wi-Fi Cameras and Accessories (N841, N842, N843, N844, N861, D862, D871 Series)

The following article provides instructions for connecting your Lorex Fusion Collection Wi-Fi cameras and accessories to the Lorex App and to your Fusion recorder.

Lorex Fusion: Frequently Asked Questions

The following frequently asked questions (FAQs) provide more information about your Lorex Fusion Collection.

Lorex Fusion: Troubleshooting

The following article provides some troubleshooting tips for setting up your Lorex Fusion Collection.

N Series NVRs: Adding cameras from the LAN

N Series NVRs: Area search

N Series NVRs: Audio recording

N Series NVRs: Backing up video recordings

N Series NVRs: Changing the recorder’s output resolution

N Series NVRs: Configuring hard drive overwrite

N Series NVRs: Configuring motion detection

N Series NVRs: Configuring person & vehicle detection

N Series NVRs: Configuring recording quality

N Series NVRs: Playing back recorded video

N Series NVRs: Setting a recording schedule

N Series NVRs: Setting up email alerts

N Series NVRs: Smart search

Technical Support: Frequently Asked Questions

We have curated these frequently asked questions (FAQs) to provide you with a quick and easy solution to technical issues regarding your Lorex product.

Top Reasons Your Lorex Camera May Lose Video or Go Black

There are a multitude of reasons why your security camera may go black. The following list of potential issues will walk you through the process of identifying the root cause and do a quick f