Tag: Advanced Troubleshooting
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How to Determine the Cause of a Disconnected UniFi Device
When a UniFi device shows as disconnected or offline in the UniFi Network application, it doesn’t always mean the users connected to that device are experiencing internet issues. Understanding the root cause is key to fixing the problem and preventing future outages. Does “Disconnected” Mean the Internet is Down? Not always. A disconnected device simply…
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UniFi SSH Commands Guide
Troubleshooting, adoption, and maintenance via command line Accessing UniFi devices via SSH is one of the most powerful ways to troubleshoot issues, inspect device settings, adopt devices manually, or perform advanced configuration and reset tasks. This guide walks you through how to SSH into a UniFi device and lists the most useful SSH commands with…
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How to Update UniFi AP Firmware
A complete guide to upgrading UniFi Access Point firmware manually or automatically. Keeping your UniFi Access Points up to date ensures optimal performance, improved stability, and enhanced security. This guide outlines all available methods to update UniFi AP firmware—including through the UniFi Network application, manually via URL, and directly via SSH. Why Updating Firmware Matters…
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How to Adopt a UniFi Access Point Using SSH
Sometimes UniFi devices fail to appear in the controller’s interface or cannot be adopted using the standard discovery methods. In those cases, manually adopting a UniFi AP via SSH is often the fastest and most reliable solution. This guide walks you through the full process. When to Use SSH for UniFi Adoption SSH-based adoption is…
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UniFi 9.2.87+: Where to Set the Inform Host Override
If you’re looking for the Inform Host Override setting in the latest versions of UniFi Network (9.2.87 and newer), you may notice it has moved from its previous location. This article explains what the inform host override does, when to use it, and where to find it in the current UniFi interface. What Is the…
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How to Restore UniFi from Backup
A step-by-step guide to restoring a UniFi Network Controller using a saved backup file. Restoring from a backup is essential when migrating to a new UniFi Controller, recovering from data loss, or rolling back to a stable configuration. Whether you’re using a Cloud Key, Dream Machine, self-hosted controller, or UniFi OS Console, this guide walks…
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UniFi Isolated: What It Means and How to Fix It
When managing a UniFi network, you may notice a device listed as “Isolated.” This status can be confusing, especially if the device seems to be working. In this guide, we’ll explain what “Isolated” means in UniFi, why it happens, and how to fix it for both wired and wireless (mesh) access points. What Does “Isolated”…
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UniFi 9.2+: Where Did the SSH Settings Go?
If you’re trying to locate SSH credentials in UniFi Network version 9.2.87 or later, you’re not alone. Ubiquiti recently reorganized parts of the UniFi interface, moving several key settings; including device SSH credentials, out of their previous locations. This guide shows you exactly where to find them, and how to manage SSH settings for UniFi…
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How to Test Telephone Lines with a Butt Set: POTS, PBX, and Beyond
Testing telephone lines efficiently and effectively is crucial for ensuring reliable communication, whether in hospitality, business, or residential environments. A butt set, also called a test set, is an essential tool for technicians. Recently, one of my readers asked a question that inspired me to clarify the differences and common practices when testing PBX lines…
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DNS Troubleshooting: A Comprehensive Guide to Resolving DNS Issues
The Domain Name System (DNS) is a critical component of the internet that translates human-friendly domain names (like example.com) into IP addresses that computers use to identify each other on the network. When DNS issues arise, they can disrupt your ability to access websites, send emails, or use online services. This guide provides a comprehensive…
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