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Technical WiFi guides

Deep, expert-led technical guides on guest WiFi, analytics, captive portals, and venue technology.

Ready to move from research to rollout? See how Purple's captive portal software handles branded guest sign-in, analytics, and compliance in one platform.

Captive Portal Authentication Methods Compared
Authentication

Captive Portal Authentication Methods Compared

This authoritative technical reference guide evaluates the architectural, operational, and compliance trade-offs of five core captive portal authentication methods. It provides network architects, IT directors, and marketing managers with the quantitative data and decision frameworks required to balance guest onboarding friction with data-collection requirements across enterprise venues.

6 mins read1k words
Captive Portal vs Splash Page
Captive Portals

Captive Portal vs Splash Page

This authoritative guide breaks down the critical distinction between captive portals and splash pages in guest WiFi networks. It clarifies how the underlying network interception mechanism works in tandem with the visual guest interface, helping IT leaders and venue operators make informed architectural and procurement decisions.

8 mins read2k words
Managing BYOD (Bring Your Own Device) Security on Staff Networks
Staff WiFi

Managing BYOD (Bring Your Own Device) Security on Staff Networks

An authoritative, technical reference guide for enterprise IT managers and network architects on securing Bring Your Own Device (BYOD) access on staff networks. This guide outlines the exact network architecture, authentication protocols, and MDM integration workflows required to mitigate data leakages and maintain regulatory compliance across high-footfall venues.

9 mins read2k words
Captive portal login troubleshooting and fixes
Captive Portals

Captive portal login troubleshooting and fixes

Troubleshoot captive portal login failures step by step. Fix CNA popup suppression, HSTS certificate errors, NeverSSL probes, and RADIUS timeout issues.

3 mins read1k words
How to Implement 802.1X Authentication with Cloud RADIUS
radius

How to Implement 802.1X Authentication with Cloud RADIUS

This technical reference guide provides a comprehensive framework for implementing 802.1X authentication with Cloud RADIUS across distributed enterprise estates. It details the architecture, EAP method selection, deployment sequencing, and risk mitigation strategies required to secure network access while eliminating the operational overhead of on-premises infrastructure.

5 mins read1k words
What is Cloud RADIUS? A Comprehensive Guide to RADIUS as a Service
radius

What is Cloud RADIUS? A Comprehensive Guide to RADIUS as a Service

This comprehensive guide explores Cloud RADIUS (RADIUS as a Service), detailing its architecture, EAP methods, and implementation strategies. It provides IT leaders with actionable insights on migrating from on-premises servers to a scalable, secure, and compliant cloud-based authentication model.

5 mins read1k words
Migrating from On-Premises RADIUS (NPS) to RADIUS-as-a-Service
radius

Migrating from On-Premises RADIUS (NPS) to RADIUS-as-a-Service

This authoritative guide details the technical architecture, implementation methodology, and business impact of migrating from on-premises Microsoft Network Policy Server (NPS) to a cloud-native RADIUS-as-a-Service model. It provides IT leaders and network architects with practical frameworks to reduce operational overhead, eliminate single points of failure, and secure enterprise authentication across distributed venues.

5 mins read1k words
Understanding RSSI and Signal Strength for Optimal Channel Planning
WiFi Optimization

Understanding RSSI and Signal Strength for Optimal Channel Planning

You will be able to read RSSI correctly, set -67 dBm and 25 dB SNR design targets, and decide AP placement, power, channel width and data rates from survey evidence. You will also know where RSSI misleads, and how to separate a coverage problem from co-channel interference before buying more access points.

13 mins read3k words
Privacy by Design: Anonymizing WiFi Data for GDPR Compliance
Analytics

Privacy by Design: Anonymizing WiFi Data for GDPR Compliance

This authoritative guide details the technical architecture and implementation strategies for anonymising WiFi data to ensure GDPR compliance. It provides IT leaders and network architects with actionable frameworks for balancing robust venue analytics with strict data privacy requirements.

4 mins read1k words
20MHz vs 40MHz vs 80MHz: Which Channel Width Should You Use?
WiFi Optimization

20MHz vs 40MHz vs 80MHz: Which Channel Width Should You Use?

This guide provides a definitive, vendor-neutral technical reference for IT managers, network architects, and venue operations directors on selecting the correct WiFi channel width - 20MHz, 40MHz, or 80MHz - across enterprise deployments in hospitality, retail, events, and public-sector environments. It covers the underlying IEEE 802.11 mechanics, real-world capacity trade-offs, and step-by-step deployment guidance to help teams make the right call this quarter. Understanding channel width selection is one of the highest-leverage decisions in any wireless LAN design, directly impacting throughput, interference, client density support, and the reliability of guest-facing services.

6 mins read1k words
What is a WLC (Wireless LAN Controller) and Do You Still Need One?
Hardware

What is a WLC (Wireless LAN Controller) and Do You Still Need One?

You will be able to decide whether your property portfolio still needs an on-premises wireless LAN controller, or whether cloud management, an embedded controller or controller-less access points fit better. You will also be able to choose central switching or local breakout per SSID, size for peak load, and keep your Purple guest layer independent of the architecture underneath.

12 mins read3k words
Power over Ethernet (PoE) for Access Points: An Implementation Guide
Hardware

Power over Ethernet (PoE) for Access Points: An Implementation Guide

This guide provides infrastructure technicians, network architects, and IT decision-makers with a definitive technical reference for deploying Power over Ethernet (PoE) access points across enterprise venues including hotels, retail estates, stadiums, and public-sector facilities. It covers IEEE standards from 802.3af through 802.3bt, power budget calculation, cabling requirements, VLAN segmentation, and security compliance, with concrete implementation scenarios and measurable ROI benchmarks. Understanding PoE architecture is foundational to any [Guest WiFi](/guest-wifi) or [WiFi Analytics](/guest-wifi) deployment, as the reliability of the physical layer directly determines the quality of data capture, user experience, and operational uptime.

12 mins read3k words
Mesh Network vs Access Points: Which is Better for Large Venues?
Hardware

Mesh Network vs Access Points: Which is Better for Large Venues?

This technical guide provides a definitive comparison between mesh networks and traditional wired access points for large-scale venues, covering architecture, performance trade-offs, and deployment strategy. It equips IT managers, network architects, and CTOs with actionable frameworks to design high-performance, compliant WiFi infrastructures for hospitality, retail, events, and public-sector environments. The guide also maps these architectural decisions to Purple's hardware-agnostic guest WiFi and analytics platform, demonstrating how the right infrastructure choice drives measurable business outcomes.

8 mins read2k words
Cisco Meraki vs. Aruba: A Technical Comparison for Guest WiFi
Hardware

Cisco Meraki vs. Aruba: A Technical Comparison for Guest WiFi

An authoritative technical comparison of Cisco Meraki and HPE Aruba for enterprise guest WiFi deployments. This guide provides actionable insights for IT managers and architects on architecture, authentication, network segmentation, and hardware-agnostic analytics integration.

4 mins read1k words
Comparing Controller-Based vs. Cloud-Managed Access Points
Hardware

Comparing Controller-Based vs. Cloud-Managed Access Points

This technical reference guide compares controller-based and cloud-managed Access Point architectures for enterprise environments. It provides IT leaders with a vendor-neutral framework for evaluating deployment models, total cost of ownership, and integration capabilities with guest intelligence platforms like Purple.

6 mins read1k words
Access Point vs. Router: A Guide for Commercial Networking
Hardware

Access Point vs. Router: A Guide for Commercial Networking

This comprehensive guide explores the technical distinctions between access points and routers, providing actionable deployment strategies for commercial environments. It equips IT managers and venue operators with the knowledge required to architect scalable, secure, and high-performance wireless networks.

5 mins read1k words
WiFi Repeater vs. Extender: Enterprise Use Cases
Hardware

WiFi Repeater vs. Extender: Enterprise Use Cases

This technical reference guide provides a definitive comparison between WiFi repeaters and extenders for enterprise environments. It equips IT managers and network architects with the decision frameworks needed to deploy the right hardware for specific venue requirements, ensuring optimal performance, compliance, and ROI.

4 mins read1k words
Heatmapping vs Presence Analytics: Technical Differences
Analytics

Heatmapping vs Presence Analytics: Technical Differences

This authoritative technical guide details the critical architectural and operational differences between WiFi heatmapping and presence analytics for enterprise venue operators. It provides IT leaders, network architects, and operations directors with actionable deployment frameworks, real-world implementation scenarios, and vendor-neutral best practices for extracting maximum ROI from their existing wireless infrastructure.

8 mins read2k words
How to Calculate Dwell Time Using WiFi Location Analytics
Analytics

How to Calculate Dwell Time Using WiFi Location Analytics

This guide provides a comprehensive technical reference for calculating WiFi dwell time using WiFi location analytics, covering the full architecture from 802.11 probe request capture through RSSI-based trilateration to geofenced zone analysis. It is designed for IT managers, network architects, and venue operations directors who need to deploy accurate, scalable location intelligence across retail, hospitality, healthcare, and public-sector environments. Readers will gain actionable implementation guidance, real-world case studies, and a clear framework for translating raw spatial data into measurable business outcomes.

9 mins read2k words
What is a Probe Request? Understanding How Devices Discover Networks
Network Design

What is a Probe Request? Understanding How Devices Discover Networks

This technical reference guide provides a deep-dive into IEEE 802.11 probe requests, active versus passive scanning, and the impact of MAC randomization on venue analytics. It delivers actionable implementation strategies for network architects to optimize high-density deployments, mitigate probe storms, and ensure accurate, CCPA/CPRA-compliant data collection using authenticated identity layers.

6 mins read1k words
How to Track Unique Devices on Enterprise Wireless Networks
Analytics

How to Track Unique Devices on Enterprise Wireless Networks

This guide provides a comprehensive technical overview of tracking unique devices across enterprise wireless networks. It addresses modern challenges like MAC randomisation and details implementation strategies for venue operators and IT teams to maintain accurate analytics and user identification.

5 mins read1k words
WiFi 6 vs WiFi 5: Does it Solve Channel Interference?
WiFi Optimization

WiFi 6 vs WiFi 5: Does it Solve Channel Interference?

This guide provides a technical deep dive into how WiFi 6 (802.11ax) addresses channel interference in high-density enterprise environments through OFDMA and BSS Coloring. It equips IT managers, network architects, and CTOs with actionable deployment strategies, real-world case studies from hospitality and healthcare, and a framework for evaluating the ROI of infrastructure upgrades in venues where wireless performance is business-critical.

7 mins read2k words
How MAC Address Randomisation Affects Guest WiFi Analytics
Analytics

How MAC Address Randomisation Affects Guest WiFi Analytics

This guide provides a technical deep-dive into how MAC address randomisation impacts guest WiFi analytics. It offers practical strategies for IT leaders and network architects to restore visibility, ensure accurate metrics, and maintain compliance across large-scale deployments. Covering the mechanics of per-network and ephemeral randomisation, identity resolution architecture, and real-world deployment scenarios, this is the definitive reference for any organization relying on WiFi-derived spatial data.

6 mins read1k words
5GHz DFS WiFi Channels: When to Use & Avoid in Enterprise
WiFi Optimization

5GHz DFS WiFi Channels: When to Use & Avoid in Enterprise

Learn how 5GHz DFS WiFi channels work, radar interference risks, CAC wait times, weather radar channels, and enterprise channel planning best practices.

5 mins read1k words