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<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_3" >
<label class="md-nav__link" for="__nav_3" id="__nav_3_label" tabindex="0">
<span class="md-ellipsis">
Setup
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_3_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_3">
<span class="md-nav__icon md-icon"></span>
Setup
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_3_1" >
<label class="md-nav__link" for="__nav_3_1" id="__nav_3_1_label" tabindex="0">
<span class="md-ellipsis">
Getting started
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_3_1_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_3_1">
<span class="md-nav__icon md-icon"></span>
Getting started
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../SUBNETS/" class="md-nav__link">
<span class="md-ellipsis">
Subnets
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../PLUGINS/" class="md-nav__link">
<span class="md-ellipsis">
Enable Plugins
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../PIHOLE_GUIDE/" class="md-nav__link">
<span class="md-ellipsis">
Pi-hole Guide
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../HOME_ASSISTANT/" class="md-nav__link">
<span class="md-ellipsis">
Home Assistant
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../SMTP/" class="md-nav__link">
<span class="md-ellipsis">
Emails
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../BACKUPS/" class="md-nav__link">
<span class="md-ellipsis">
Backups
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../SECURITY_FEATURES/" class="md-nav__link">
<span class="md-ellipsis">
Security Features
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../SECURITY/" class="md-nav__link">
<span class="md-ellipsis">
Security Considerations
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_3_2" >
<label class="md-nav__link" for="__nav_3_2" id="__nav_3_2_label" tabindex="0">
<span class="md-ellipsis">
Advanced guides
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_3_2_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_3_2">
<span class="md-nav__icon md-icon"></span>
Advanced guides
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../REMOTE_NETWORKS/" class="md-nav__link">
<span class="md-ellipsis">
Remote Networks
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../NOTIFICATIONS/" class="md-nav__link">
<span class="md-ellipsis">
Notifications Guide
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../PUID_PGID_SECURITY/" class="md-nav__link">
<span class="md-ellipsis">
Custom PUID/GUID
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../NAME_RESOLUTION/" class="md-nav__link">
<span class="md-ellipsis">
Name Resolution
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../AUTHELIA/" class="md-nav__link">
<span class="md-ellipsis">
Authelia
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../PERFORMANCE/" class="md-nav__link">
<span class="md-ellipsis">
Performance
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../REVERSE_DNS/" class="md-nav__link">
<span class="md-ellipsis">
Reverse DNS
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../REVERSE_PROXY/" class="md-nav__link">
<span class="md-ellipsis">
Reverse Proxy
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../WEBHOOK_N8N/" class="md-nav__link">
<span class="md-ellipsis">
Webhooks (n8n)
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../WORKFLOWS/" class="md-nav__link">
<span class="md-ellipsis">
Workflows
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../WORKFLOW_EXAMPLES/" class="md-nav__link">
<span class="md-ellipsis">
Workflow Examples
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../DOCKER_SWARM/" class="md-nav__link">
<span class="md-ellipsis">
Docker Swarm
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_3_3" >
<label class="md-nav__link" for="__nav_3_3" id="__nav_3_3_label" tabindex="0">
<span class="md-ellipsis">
Best practice advisories
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_3_3_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_3_3">
<span class="md-nav__icon md-icon"></span>
Best practice advisories
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../ADVISORY_EYES_ON_GLASS/" class="md-nav__link">
<span class="md-ellipsis">
Eyes on glass
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../ADVISORY_MULTI_NETWORK/" class="md-nav__link">
<span class="md-ellipsis">
Multi-network monitoring
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_3_4" >
<label class="md-nav__link" for="__nav_3_4" id="__nav_3_4_label" tabindex="0">
<span class="md-ellipsis">
Help
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_3_4_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_3_4">
<span class="md-nav__icon md-icon"></span>
Help
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../COMMON_ISSUES/" class="md-nav__link">
<span class="md-ellipsis">
Common issues
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../RANDOM_MAC/" class="md-nav__link">
<span class="md-ellipsis">
Random MAC
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../FIX_OFFLINE_DETECTION/" class="md-nav__link">
<span class="md-ellipsis">
Incorrect Offline Detection
</span>
</a>
</li>
</ul>
</nav>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_4" checked>
<label class="md-nav__link" for="__nav_4" id="__nav_4_label" tabindex="">
<span class="md-ellipsis">
Device guides
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_4_label" aria-expanded="true">
<label class="md-nav__title" for="__nav_4">
<span class="md-nav__icon md-icon"></span>
Device guides
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_4_1" checked>
<label class="md-nav__link" for="__nav_4_1" id="__nav_4_1_label" tabindex="">
<span class="md-ellipsis">
Editing Devices
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_4_1_label" aria-expanded="true">
<label class="md-nav__title" for="__nav_4_1">
<span class="md-nav__icon md-icon"></span>
Editing Devices
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../DEVICE_MANAGEMENT/" class="md-nav__link">
<span class="md-ellipsis">
Management
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../DEVICES_BULK_EDITING/" class="md-nav__link">
<span class="md-ellipsis">
Bulk Editing
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../CUSTOM_PROPERTIES/" class="md-nav__link">
<span class="md-ellipsis">
Custom Properties
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../DEVICE_DISPLAY_SETTINGS/" class="md-nav__link">
<span class="md-ellipsis">
Device Display Settings
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../SESSION_INFO/" class="md-nav__link">
<span class="md-ellipsis">
Session Info
</span>
</a>
</li>
<li class="md-nav__item md-nav__item--active">
<input class="md-nav__toggle md-toggle" type="checkbox" id="__toc">
<label class="md-nav__link md-nav__link--active" for="__toc">
<span class="md-ellipsis">
Field Lock/Unlock
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<a href="./" class="md-nav__link md-nav__link--active">
<span class="md-ellipsis">
Field Lock/Unlock
</span>
</a>
<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
<label class="md-nav__title" for="__toc">
<span class="md-nav__icon md-icon"></span>
Table of contents
</label>
<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
<li class="md-nav__item">
<a href="#overview" class="md-nav__link">
<span class="md-ellipsis">
Overview
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#tracked-fields" class="md-nav__link">
<span class="md-ellipsis">
Tracked Fields
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#source-values-explained" class="md-nav__link">
<span class="md-ellipsis">
Source Values Explained
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#usage-examples" class="md-nav__link">
<span class="md-ellipsis">
Usage Examples
</span>
</a>
<nav class="md-nav" aria-label="Usage Examples">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#lock-a-field-prevent-plugin-changes" class="md-nav__link">
<span class="md-ellipsis">
Lock a Field (Prevent Plugin Changes)
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#unlock-a-field-allow-plugin-updates" class="md-nav__link">
<span class="md-ellipsis">
Unlock a Field (Allow Plugin Updates)
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#common-scenarios" class="md-nav__link">
<span class="md-ellipsis">
Common Scenarios
</span>
</a>
<nav class="md-nav" aria-label="Common Scenarios">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#scenario-1-youve-named-your-device-and-want-to-keep-the-name" class="md-nav__link">
<span class="md-ellipsis">
Scenario 1: You've Named Your Device and Want to Keep the Name
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#scenario-2-you-lock-a-field-but-it-still-changes" class="md-nav__link">
<span class="md-ellipsis">
Scenario 2: You Lock a Field, But It Still Changes
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#scenario-3-you-want-to-let-plugins-update-again" class="md-nav__link">
<span class="md-ellipsis">
Scenario 3: You Want to Let Plugins Update Again
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#what-happens-when-you-lock-a-field" class="md-nav__link">
<span class="md-ellipsis">
What Happens When You Lock a Field
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#what-happens-when-you-unlock-a-field" class="md-nav__link">
<span class="md-ellipsis">
What Happens When You Unlock a Field
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#error-messages-solutions" class="md-nav__link">
<span class="md-ellipsis">
Error Messages &amp; Solutions
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#quick-tips" class="md-nav__link">
<span class="md-ellipsis">
Quick Tips
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#when-to-lock-vs-when-not-to-lock" class="md-nav__link">
<span class="md-ellipsis">
When to Lock vs. When NOT to Lock
</span>
</a>
<nav class="md-nav" aria-label="When to Lock vs. When NOT to Lock">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#good-reasons-to-lock" class="md-nav__link">
<span class="md-ellipsis">
✅ Good reasons to lock:
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#bad-reasons-to-lock" class="md-nav__link">
<span class="md-ellipsis">
❌ Bad reasons to lock:
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#troubleshooting" class="md-nav__link">
<span class="md-ellipsis">
Troubleshooting
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#see-also" class="md-nav__link">
<span class="md-ellipsis">
See also
</span>
</a>
</li>
</ul>
</nav>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--section md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_4_2" >
<label class="md-nav__link" for="__nav_4_2" id="__nav_4_2_label" tabindex="">
<span class="md-ellipsis">
Icons and Topology
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_4_2_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_4_2">
<span class="md-nav__icon md-icon"></span>
Icons and Topology
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../ICONS/" class="md-nav__link">
<span class="md-ellipsis">
Icons
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../NETWORK_TREE/" class="md-nav__link">
<span class="md-ellipsis">
Network Topology
</span>
</a>
</li>
</ul>
</nav>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_5" >
<label class="md-nav__link" for="__nav_5" id="__nav_5_label" tabindex="0">
<span class="md-ellipsis">
Troubleshooting
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_5_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_5">
<span class="md-nav__icon md-icon"></span>
Troubleshooting
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../DEBUG_TIPS/" class="md-nav__link">
<span class="md-ellipsis">
General Tips
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../COMMON_ISSUES/" class="md-nav__link">
<span class="md-ellipsis">
Common issues
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../LOGGING/" class="md-nav__link">
<span class="md-ellipsis">
Inspecting Logs
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../DEBUG_API_SERVER/" class="md-nav__link">
<span class="md-ellipsis">
API Server Issues
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../DEBUG_INVALID_JSON/" class="md-nav__link">
<span class="md-ellipsis">
Invalid JSON Issues
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../DEBUG_PHP/" class="md-nav__link">
<span class="md-ellipsis">
PHP Issues
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../DEBUG_PLUGINS/" class="md-nav__link">
<span class="md-ellipsis">
Plugin Issues
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../WEB_UI_PORT_DEBUG/" class="md-nav__link">
<span class="md-ellipsis">
Web UI Port Issues
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../WORKFLOWS_DEBUGGING/" class="md-nav__link">
<span class="md-ellipsis">
Workflows Issues
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_6" >
<label class="md-nav__link" for="__nav_6" id="__nav_6_label" tabindex="0">
<span class="md-ellipsis">
Development
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_6_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_6">
<span class="md-nav__icon md-icon"></span>
Development
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_6_1" >
<label class="md-nav__link" for="__nav_6_1" id="__nav_6_1_label" tabindex="0">
<span class="md-ellipsis">
Plugin and app development
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_6_1_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_6_1">
<span class="md-nav__icon md-icon"></span>
Plugin and app development
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../DEV_ENV_SETUP/" class="md-nav__link">
<span class="md-ellipsis">
Environment Setup
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../BUILDS/" class="md-nav__link">
<span class="md-ellipsis">
Builds
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../DEV_DEVCONTAINER/" class="md-nav__link">
<span class="md-ellipsis">
Devcontainer
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../DEV_PORTS_HOST_MODE/" class="md-nav__link">
<span class="md-ellipsis">
Devcontainer Ports
</span>
</a>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_6_1_5" >
<label class="md-nav__link" for="__nav_6_1_5" id="__nav_6_1_5_label" tabindex="0">
<span class="md-ellipsis">
Custom Plugins
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="3" aria-labelledby="__nav_6_1_5_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_6_1_5">
<span class="md-nav__icon md-icon"></span>
Custom Plugins
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../PLUGINS_DEV/" class="md-nav__link">
<span class="md-ellipsis">
Overview
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../PLUGINS_DEV_QUICK_START/" class="md-nav__link">
<span class="md-ellipsis">
Quick Start
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../PLUGINS_DEV_DATA_CONTRACT/" class="md-nav__link">
<span class="md-ellipsis">
Data Contract
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../PLUGINS_DEV_SETTINGS/" class="md-nav__link">
<span class="md-ellipsis">
Settings System
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../PLUGINS_DEV_DATASOURCES/" class="md-nav__link">
<span class="md-ellipsis">
Data Sources
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../PLUGINS_DEV_UI_COMPONENTS/" class="md-nav__link">
<span class="md-ellipsis">
UI Components
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../PLUGINS_DEV_CONFIG/" class="md-nav__link">
<span class="md-ellipsis">
Config Lifecycle
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="../FRONTEND_DEVELOPMENT/" class="md-nav__link">
<span class="md-ellipsis">
Frontend Development
</span>
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<h1 id="quick-reference-guide-device-field-lockunlock-system">Quick Reference Guide - Device Field Lock/Unlock System</h1>
<h2 id="overview">Overview</h2>
<p><img alt="Field source and locks" src="../img/DEVICE_MANAGEMENT/field_sources_and_locks.png" /></p>
<p>The device field lock/unlock system allows you to protect specific device fields from being automatically overwritten by scanning plugins. When you lock a field, NetAlertX remembers your choice and prevents plugins from changing that value until you unlock it.</p>
<p><strong>Use case:</strong> You've manually corrected a device name or port number and want to keep it that way, even when plugins discover different values.</p>
<h2 id="tracked-fields">Tracked Fields</h2>
<p>These are the ONLY fields that can be locked:</p>
<ul>
<li><code>devName</code> - Device hostname/alias</li>
<li><code>devVendor</code> - Device manufacturer</li>
<li><code>devSSID</code> - WiFi network name</li>
<li><code>devParentMAC</code> - Parent/gateway MAC</li>
<li><code>devParentPort</code> - Parent device port</li>
<li><code>devParentRelType</code> - Relationship type (e.g., "gateway")</li>
<li><code>devVlan</code> - VLAN identifier</li>
</ul>
<p>Additional fields that are tracked (and their source is dispalyed in the UI if available):</p>
<ul>
<li><code>devMac</code></li>
<li><code>devLastIP</code></li>
<li><code>devFQDN</code></li>
</ul>
<h2 id="source-values-explained">Source Values Explained</h2>
<p>Each locked field has a "source" indicator that shows you why the value is protected:</p>
<table>
<thead>
<tr>
<th>Indicator</th>
<th>Meaning</th>
<th>Can It Change?</th>
</tr>
</thead>
<tbody>
<tr>
<td>🔒 <strong>LOCKED</strong></td>
<td>You locked this field</td>
<td>No, until you unlock it</td>
</tr>
<tr>
<td>✏️ <strong>USER</strong></td>
<td>You edited this field</td>
<td>No, plugins can't overwrite</td>
</tr>
<tr>
<td>📡 <strong>NEWDEV</strong></td>
<td>Default/unset value</td>
<td>Yes, plugins can update</td>
</tr>
<tr>
<td>📡 <strong>Plugin name</strong></td>
<td>Last updated by a plugin (e.g., UNIFIAPI)</td>
<td>Yes, plugins can update if field in SET_ALWAYS</td>
</tr>
</tbody>
</table>
<p>Overwrite rules are</p>
<div class="admonition tip">
<p class="admonition-title">Tip</p>
<p>You can bulk-unlock devices in the <a href="../DEVICES_BULK_EDITING/">Multi-edit</a> dialog. This removes all <code>USER</code> and <code>LOCKED</code> values from all <code>*Source</code> fields of selected devices.</p>
</div>
<h2 id="usage-examples">Usage Examples</h2>
<h3 id="lock-a-field-prevent-plugin-changes">Lock a Field (Prevent Plugin Changes)</h3>
<ol>
<li>Navigate to <strong>Device Details</strong> for the device</li>
<li>Find the field you want to protect (e.g., device name)</li>
<li>Click the <strong>lock button</strong> (🔒) next to the field</li>
<li>The button changes to <strong>unlock</strong> (🔓)</li>
<li>That field is now protected</li>
</ol>
<h3 id="unlock-a-field-allow-plugin-updates">Unlock a Field (Allow Plugin Updates)</h3>
<ol>
<li>Go to <strong>Device Details</strong></li>
<li>Find the locked field (shows 🔓)</li>
<li>Click the <strong>unlock button</strong> (🔓)</li>
<li>The button changes back to <strong>lock</strong> (🔒)</li>
<li>Plugins can now update that field again</li>
</ol>
<h2 id="common-scenarios">Common Scenarios</h2>
<h3 id="scenario-1-youve-named-your-device-and-want-to-keep-the-name">Scenario 1: You've Named Your Device and Want to Keep the Name</h3>
<ol>
<li>You manually edit device name to "Living Room Smart TV"</li>
<li>A scanning plugin later discovers it as "Unknown Device" or "DEVICE-ABC123"</li>
<li><strong>Solution:</strong> Lock the device name field</li>
<li>Your custom name is preserved even after future scans</li>
</ol>
<h3 id="scenario-2-you-lock-a-field-but-it-still-changes">Scenario 2: You Lock a Field, But It Still Changes</h3>
<p><strong>This means the field source is USER or LOCKED (protected).</strong> Check:
- Is it showing the lock icon? (If yes, it's protected)
- Wait a moment—sometimes changes take a few seconds to display
- Try refreshing the page</p>
<h3 id="scenario-3-you-want-to-let-plugins-update-again">Scenario 3: You Want to Let Plugins Update Again</h3>
<ol>
<li>Find the device with locked fields</li>
<li>Click the unlock button (🔓) next to each field</li>
<li>Refresh the page</li>
<li>Next time a plugin runs, it can update that field</li>
</ol>
<h2 id="what-happens-when-you-lock-a-field">What Happens When You Lock a Field</h2>
<ul>
<li>✅ Your custom value is kept</li>
<li>✅ Future plugin scans won't overwrite it</li>
<li>✅ You can still manually edit it anytime after unlocking</li>
<li>✅ Lock persists across plugin runs</li>
<li>✅ Other users can see it's locked</li>
</ul>
<h2 id="what-happens-when-you-unlock-a-field">What Happens When You Unlock a Field</h2>
<ul>
<li>✅ Plugins can update it again on next scan</li>
<li>✅ If a plugin has a new value, it will be applied</li>
<li>✅ You can lock it again anytime</li>
<li>✅ Your manual edits are still saved in the database</li>
</ul>
<h2 id="error-messages-solutions">Error Messages &amp; Solutions</h2>
<table>
<thead>
<tr>
<th>Message</th>
<th>What It Means</th>
<th>What to Do</th>
</tr>
</thead>
<tbody>
<tr>
<td>"Field cannot be locked"</td>
<td>You tried to lock a field that doesn't support locking</td>
<td>Only lock the fields listed above</td>
</tr>
<tr>
<td>"Device not found"</td>
<td>The device MAC address doesn't exist</td>
<td>Verify the device hasn't been deleted</td>
</tr>
<tr>
<td>Lock button doesn't work</td>
<td>Network or permission issue</td>
<td>Refresh the page and try again</td>
</tr>
<tr>
<td>Unexpected field changed</td>
<td>Field might have been unlocked</td>
<td>Check if field shows unlock icon (🔓)</td>
</tr>
</tbody>
</table>
<h2 id="quick-tips">Quick Tips</h2>
<ul>
<li><strong>Lock names you manually corrected</strong> to keep them stable</li>
<li><strong>Leave discovery fields (vendor, FQDN) unlocked</strong> for automatic updates</li>
<li><strong>Use locks sparingly</strong>—they prevent automatic data enrichment</li>
<li><strong>Check the source indicator</strong> (colored badge) to understand field origin</li>
<li><strong>Lock buttons only appear for devices that are saved</strong> (not for new devices being created)</li>
</ul>
<h2 id="when-to-lock-vs-when-not-to-lock">When to Lock vs. When NOT to Lock</h2>
<h3 id="good-reasons-to-lock">✅ <strong>Good reasons to lock:</strong></h3>
<ul>
<li>You've customized the device name and it's correct</li>
<li>You've set a static IP and it shouldn't change</li>
<li>You've configured VLAN information</li>
<li>You know the parent device and don't want it auto-corrected</li>
</ul>
<h3 id="bad-reasons-to-lock">❌ <strong>Bad reasons to lock:</strong></h3>
<ul>
<li>The value seems wrong—edit it first, then lock</li>
<li>You want to prevent data from another source—use field lock, not to hide problems</li>
<li>You're trying to force a value the system disagrees with</li>
</ul>
<h2 id="troubleshooting">Troubleshooting</h2>
<p><strong>Lock button not appearing:</strong></p>
<ul>
<li>Confirm the field is one of the tracked fields (see list above)</li>
<li>Confirm the device is already saved (new devices don't show lock buttons)</li>
<li>Refresh the page</li>
</ul>
<p><strong>Lock button is there but click doesn't work:</strong></p>
<ul>
<li>Check your internet connection</li>
<li>Check you have permission to edit devices</li>
<li>Look at browser console (F12 &gt; Console tab) for error messages</li>
<li>Try again in a few seconds</li>
</ul>
<p><strong>Field still changes after locking:</strong></p>
<ul>
<li>Double-check the lock icon shows</li>
<li>Reload the page—the change might be a display issue</li>
<li>Check if you accidentally unlocked it</li>
<li>Open an issue if it persists</li>
</ul>
<h2 id="see-also">See also</h2>
<ul>
<li><a href="./">Device locking</a></li>
<li><a href="../DEVICE_SOURCE_FIELDS/">Device source fields</a></li>
<li><a href="../API_DEVICE/">API Device Endpoints Documentation</a></li>
<li><a href="../PLUGINS_DEV/#authoritative-fields">Authoritative Field Updates System</a></li>
<li><a href="../PLUGINS_DEV_CONFIG/">Plugin Configuration Reference</a></li>
<li><a href="../API_DEVICE_FIELD_LOCK/">Device locking APIs</a></li>
<li><a href="../DEVICE_MANAGEMENT/">Device management</a></li>
</ul>
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