Wi-Fi Troubleshooting: Why Captures Are Empty
Step-by-step fixes for handshake capture failures, channel mistakes, adapter limitations, and WPA3/PMF expectations.
Wireless Security Blog
Latest research, guides, and insights into wireless security, hardware hacking, and ethical penetration testing. Stay updated with the latest tools, techniques, and discoveries.
Featured 2026 Troubleshooting Guides
BLE Troubleshooting: Pairing, GATT Errors, and Encrypted Characteristics
Practical fixes for pairing/bonding confusion, GATT permission errors, and unstable characteristic reads/writes.
SDR Troubleshooting: Gain, Sample Rate, Drift, and Overload
Build a stable SDR baseline and fix the common causes of decoder instability and noisy captures.
Troubleshooting & Fixes (Lab-Safe)
Practical, permission-first checklists for common wireless research problems: pairing issues, noisy RF environments, capture failures, and tool setup mistakes.
Troubleshooting Hub
Start here for structured workflows across Wi-Fi, BLE, RFID/NFC, Sub-GHz, IR, and SDR.
Wi‑Fi: Beacons only (no data frames)
Fix channel/band mistakes, generate predictable traffic, and validate captures.
Wi‑Fi: Wrong interface / empty PCAP
Managed vs monitor names; capture vs display filters.
Wi‑Fi: PMF on but still confused
Optional vs required PMF and links to the enforcement checklist.
BLE: Visible but unreadable characteristic
Permissions vs properties, pairing/bonding, encryption, and service cache gotchas.
BLE: Connected but no notifications
CCCD writes, subscribe order, stale handles, and firmware that never pushes events.
Sub‑GHz: Decode looks right, replay fails
Frequency plan, timing mismatch, rolling codes, and RF validation steps.
SDR/Sub‑GHz: Wrong decoder block (URH vs SDR++)
Signal present in the FFT but the chain doesn’t match; parameter parity checklist.
IR: Learning works, playback unreliable
Carrier/repeat patterns, ambient light noise, and a tight replay validation workflow.
RFID/NFC: Partial read or garbled UID
Coupling, metal, multi-tag fields, and when “weird bytes” mean keys—not noise.
RFID/NFC: Writes fail, reads work
Keys, sector trailers, wrong block, Ultralight vs Classic.
SDR: Busy waterfall, no decode
Overload vs wrong demod, squelch, and host/USB sample drops.
Supporting Pages (FAQs, Comparisons, Glossary)
Wi-Fi FAQ
Quick answers for capture and channel issues.
BLE FAQ
Pairing, GATT, and permissions explained simply.
Wireless Security Glossary
Plain-language definitions for core terms.
Wireless Lab Setup Guide
A practical baseline lab you can reproduce safely.
Cross-Protocol Failure Patterns
Root-cause taxonomy shared across all major wireless workflows.
Tool Reliability Scorecard
Operational scoring model for stability, docs, and ecosystem quality.
Archive & Background Articles
Sub-GHz IoT Device Security: Vulnerabilities and Exploitation Techniques
Analyzing security vulnerabilities in Sub-GHz IoT devices, including weather stations, garage door openers, and smart home sensors.
HackRF Pro Review: Next-Generation SDR for Security Research
Comprehensive review of the upcoming HackRF Pro, comparing features, performance, and capabilities against the original HackRF One.
ESP32 Marauder Setup Guide: Building Your WiFi Testing Badge
Step-by-step guide to building and configuring the ESP32 Marauder badge for WiFi penetration testing and security research.
IR Remote Security Analysis: Beyond Simple Replay Attacks
Advanced analysis of infrared remote control security, including rolling codes, encryption, and sophisticated attack methodologies.
Proxmark3 RDV4 Review: The Ultimate RFID Research Tool
In-depth review of the Proxmark3 RDV4 kit, exploring its capabilities, performance, and value for RFID/NFC security research.
Network Implant Detection: Blue Team Strategies and Tools
Defensive strategies for detecting network implants like LAN Turtle and Packet Squirrel, including monitoring techniques and response procedures.
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