Dahua Archives | CCTV Manuals

Complete List of Error Codes for Dahua NVR, DVR, and IP Camera—Quick Solutions to Fix It

Unlike in 2015, it’s now very rare to encounter error codes on Dahua security cameras. The errors I frequently encounter are common issues such as the camera not connecting to the NVR, the NVR and DVR showing an “offline” status, and Dahua NVRs and DVRs getting stuck on the logo screen. If the error isn’t too serious, users can fix it themselves in just a few minutes. However, if you’re still using older models, error codes may appear on the screen.

In this article, I will explain the error codes that have appeared on Dahua NVR, DVR, and IP camera, along with how to fix them.

The Dahua Pro Challenge 2026 Has Begun—Read the Terms and Conditions to Become the Champion

It’s started! Yes, Dahua is once again holding a competition called the Dahua Pro Challenge 2026. I’ve participated in this event before, but I haven’t won yet. The video I submitted didn’t get many views, so I didn’t win. The winner received the grand prize: a trip to Dahua’s headquarters in Hangzhou, China. The Dahua Pro Challenge is a program/competition created by Dahua Technology to recognize camera technicians who install Dahua products.

For those of you who would like to participate in this competition, please read the terms and conditions I’ve outlined below.

Why Are My Dahua NVR and DVR Status “Offline” Even Though My Internet Connection Is Working Fine—Here’s How I Fixed It

Why is Dahua NVR Offline But Internet Works

Dahua NVR status is offline but internet is working – I recently received a call from a fellow technician regarding a Dahua NVR that was showing an offline status despite the internet being working fine. He asked me to help resolve the issue by visiting the location in person. Upon arrival, I discovered an unexpected problem: the NVR was offline, but the internet was working fine.

This is my experience story to overcome the problem of Dahua NVR online status even though the internet at the location is working well.

Why Is My Dahua NVR P2P Status Offline? Here’s How I Fixed the DMSS Connection Failed Error on Site

Dahua NVR Status (P2P) Offline & Connection Failed on DMSS App

This article details my experience fixing a Dahua BVR that was offline. A while ago, I was contacted by a customer who said his Dahua CCTV camera couldn’t be remotely accessed via his phone. The customer explained that he was using a Dahua NVR at the location. I immediately scheduled an inspection at the customer’s location to determine the cause of the phone’s inaccessibility.

In this article, I will explain the problems that occur that cause Dahua NVRs to go offline and how to fix them directly at the customer’s location.

How to Use the DMSS App: Menu Explanation, Adding Devices, Live View and Playback

DMSS app menu – The Dahua Mobile Surveillance System (DMSS) enables users to access and monitor security cameras remotely from their smartphones or tablets. Whether you’re a beginner or experienced user, understanding the DMSS app’s menus is crucial to maximizing the camera’s features.

This guide will walk you through the DMSS app’s menus, explaining each feature and how to navigate the app efficiently in 2026.

Dahua MultiVision 2.0 Review: A Smarter AI Surveillance Solution for Large-Scale Security

Modern security systems require more than just high-resolution cameras, such as using larger lens resolutions. They also require intelligent tracking, extended coverage, and accurate event detection. Dahua MultiVision 2.0 is designed to address these challenges by combining multiple advanced surveillance technologies into a single platform. After reviewing the official product information and key technologies, MultiVision 2.0 appears to be a significant improvement over the previous generation.

In this article, I will review Dahua MultiVision 2.0 technology based on my understanding of the product information.

How to Use SmartPSS Lite on PC Windows (2026 Guide): Add Device, Live View & Playback

How to use SmartPSS Lite for Windows – Once you’ve installed SmartPSS Lite on your computer, you can use this software to monitor the live view of your Dahua CCTV cameras. SmartPSS Lite allows you to watch live video, access playback recordings, and download stored surveillance footage. You can install this software on Windows 10 and Windows 11.

In this guide, I will explain how to use SmartPSS Lite on Windows 11, based on the computer I am currently using.

How I Set Up SmartPSS on My PC and Learned About Its Menus

While Hikvision offers the iVMS-4200 software for viewing camera feeds on a PC, Dahua has its own software called SmartPSS Lite. Similar to iVMS-4200, SmartPSS Lite can be used to view live camera feeds and playback footage. Live camera feeds and playback can be accessed from anywhere via a PC, with no geographical restrictions.

In this guide, I’ll show you how to set up the SmartPSS app on your PC from start to finish.

Download and Install Dahua DMSS App for PC (Windows 10/11 & Mac) – Latest Version 2026

DMSS app for PC download (Windows 7/8/10/11 & Mac) – How do I view Dahua cameras on a computer? This is a frequently asked question from our customers. In this guide, we’ll cover the main software provided by Dahua for viewing camera footage on PCs and laptops. Dahua is one of the world’s leading CCTV camera brands and also provides tools to support device configuration.

DMSS is software created and developed by Dahua, and you can get it for free. Here’s how to get this software and how to install and configure it on your computer.

Dahua Network Camera Default IP Address, Username and Pasword, How to Find It?

Dahua network camera default IP address, username and password – Dahua CCTV cameras are manufactured by Dahua Technology, a leading manufacturer of video surveillance products. As a CCTV camera installer, you need to know the default IP address of your Dahua network camera to facilitate configurations such as changing the device’s IP address and password.

Below we explain the default settings of IP address, username and password on Dahua network cameras.

Dahua DH-HAC-B1A21P-U 2MP Outdoor Camera – Specs, Features & Price

Dahua DH-HAC-B1A21P-U 2MP Outdoor Analog Camera

Product details of the Dahua DH-HAC-B1A21P-U analog camera – The Dahua DH-HAC-B1A21P-U is an outdoor analog CCTV camera with a 2 megapixel lens. It’s the most economical camera Dahua offers, catering to users who want to install a CCTV camera but are on a budget. The Dahua DH-HAC-B1A21P-U is sufficient for security in smaller areas.

Below are the product details of the Dahua DH-HAC-B1A21P-U camera based on photos we took directly.