Technical WiFi guides
Deep, expert-led technical guides on guest WiFi, analytics, captive portals, and venue technology.
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10 guides in Troubleshooting
Troubleshooting Captive Portal Redirects: Resolving Guest WiFi Connection Failures
When guests connect to your WiFi but cannot access the internet, the cause is almost always a misconfigured captive portal redirect - not a hardware fault. This guide provides a deep-dive technical reference for IT managers, network architects, and CTOs to diagnose and resolve the full chain of failures: from OS-level connectivity probes and HSTS certificate conflicts through to RADIUS authorization gaps and DHCP exhaustion. It maps each failure mode to a concrete fix and shows how Purple's hardware-agnostic cloud overlay eliminates these issues across Cisco Meraki, HPE Aruba, Ruckus, Juniper Mist, Ubiquiti UniFi, Cambium, Extreme, and Fortinet deployments.
Troubleshooting Public WiFi: Fixing 'Connected, No Internet' and Splash Page Redirection Failures
This authoritative technical reference guide explains the underlying mechanics of captive portal detection and details the six primary failure modes that prevent guest WiFi from connecting. It provides IT managers and network architects with a practical troubleshooting framework to resolve HTTP redirect issues, DNS conflicts, and MAC randomization challenges.
Top 10 causes of DHCP timeouts on high-density wireless networks
A technical reference for network engineers, enterprise architects, and venue IT directors troubleshooting DHCP onboarding bottlenecks in high-density WiFi environments. Covers IP helper relay misconfigurations, lease pool starvation, broadcast airtime degradation, rogue DHCP servers, and multi-vendor remediation.
Using Packet Capture (PCAP) to Diagnose Slow WiFi Performance
This technical reference guide provides IT managers, network architects, and venue operations directors with a structured, packet-level methodology to diagnose and resolve slow enterprise WiFi performance using Packet Capture (PCAP) analysis. By dissecting raw 802.11 frames - including retransmission rates, airtime utilization, and physical layer metadata - teams can isolate RF-layer bottlenecks from wired or application issues with precision. Applicable across high-density venues including hotels, retail chains, stadiums, and convention centers, this guide delivers actionable diagnostic workflows, real-world case studies, and configuration remediation steps to reclaim network capacity and protect guest experience.
Troubleshooting 802.1X Authentication Failures (RADIUS/EAP)
Step-by-step diagnostic guide for resolving 802.1X, EAP-TLS, PEAP, and RADIUS authentication errors on enterprise WiFi networks.
A Step-by-Step Guide to Diagnosing WiFi Roaming Issues
This comprehensive guide provides enterprise IT leaders and network architects with an authoritative, step-by-step methodology for diagnosing and resolving WiFi roaming issues. By combining technical deep-dives into IEEE 802.11k/v/r standards with real-world case studies and packet-level analysis, this reference equips teams to eliminate the 'sticky client' problem and deliver seamless mobile connectivity. It covers the full diagnostic workflow from RF site surveys and controller configuration audits through to over-the-air packet capture analysis and post-remediation validation.
Why Your Stadium WiFi Grinds to a Halt (And How to Fix It)
This authoritative technical guide examines the root cause of stadium WiFi congestion - the simultaneous background chatter of 50,000 devices loading programmatic advertisements and telemetry - and provides a detailed architectural blueprint for deploying edge DNS filtering as the primary mitigation strategy. Designed for IT Directors, CTOs, and Network Architects, it delivers actionable implementation guidance, real-world case studies, and measurable ROI frameworks to help venue operators reclaim bandwidth and deliver high-performance connectivity at scale.
Solving the Connected but No Internet Error on Guest WiFi
This authoritative technical reference guide explains how DNS timeouts caused by congested networks trigger the 'Connected, No Internet' error on guest WiFi. It provides network architects and IT managers with actionable implementation steps for deploying enterprise DNS filters to resolve these bottlenecks and improve guest onboarding.
Why is Our Guest WiFi So Slow? Diagnosing Network Congestion
This guide diagnoses the hidden drivers of guest WiFi congestion - background telemetry, programmatic ad networks, and automated OS updates - which collectively consume up to 40% of public WiFi bandwidth before a guest even opens a browser. It provides a phased, vendor-neutral implementation framework for DNS filtering and QoS policies that reclaim that bandwidth, improve guest experience, and deliver measurable ROI. Targeted at IT Directors and Operations Managers in hospitality, retail, events, and public-sector environments.
Troubleshooting Windows 11 802.1X Authentication Issues: Enterprise IT Guide
A diagnostic and remediation guide for Windows 11 802.1X authentication failures. Fix RADIUS certificate trust breakages, Credential Guard PEAP blocks, and GPO wireless profile errors.
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