Views: 2,930Hi everyone! As many of you who have attended my conference presentations and Wi-Fi classes know, I spend time talking about the correct way of troubleshooting Wi-Fi networks. **********JUST UPDATED************* Power cycling or rebooting is NOT a first step. Here’s why: lets say you are having issues of some kind (slow speed, connectivity issues,
Our Comprehensive Wi-Fi Troubleshooting Guide Read More »
Views: 1,548Wi-Fi 8 is the informal market name for IEEE 802.11bn, currently being developed as the next major Wi-Fi generation after Wi-Fi 7. Its technical theme is UHR — Ultra High Reliability. Unlike earlier Wi-Fi generations that mainly advertised higher peak speeds, Wi-Fi 8 is aimed at making Wi-Fi more consistent, predictable, and reliable in
It’s Early Days – but what is Wi-Fi 8? Read More »
Views: 22,8232-Day Instructor-Led Hands-On Lab CourseAvailable through Web-Based Live Delivery or On-Site DeliveryMinimum 10 Students – Maximum 16 Students What Students are Saying about this class: Course Description Wi-Fi troubleshooting requires a different packet-analysis skill set than traditional wired Ethernet troubleshooting. Wireless networks introduce radio conditions, multiple 802.11 frame types, management exchanges, association and authentication
CSI-HO-020-G – Explore Packet Analysis with Wireshark – WLAN Edition – 2 Day Read More »
Views: 2,868Learning how to manually control Wi-Fi channels in Linux is a foundational skill for wireless troubleshooting and packet analysis. Proper channel selection is critical because Wi-Fi troubleshooting is highly dependent on capturing the correct RF environment at the correct moment in time. When combined with Wireshark, Linux monitor mode provides one of the most
How to Set a WLAN Frequency or Channel in Linux for Wireshark Packet Capture Read More »
Views: 13,303Below is a clean, technician-focused list of the Windows PowerShell commands used for Wi-Fi and WLAN troubleshooting, organized by function. This aligns well with broadband-tech workflows, capture analysis, and WLAN Operations fundamentals. You will find a more comprehensive and updated version of this post at our Patreon community. You will find the complete post here:
Windows PowerShell Commands for Wi-Fi and WLANs Read More »
Views: 3,210Great question. In one sentence it is a purple tool, meaning both! Wireshark itself is a passive tool, it is non-intrusive — it doesn’t create attacks — but it’s a force multiplier for both Red and Blue Teams depending on who controls the capture point and how the data is used. Let me dig
Is Wireshark a Red Team or Blue Team Tool? Read More »
Views: 2,719Before anything, I want to thank my user @LeoRegem on Discord for providing the information below. Thank you! Join us there is you want to comment. Here are the steps for capturing WLAN Wi-Fi packets on Android (basically getting into monitor mode and selecting channels, etc): Once you have this set, you can capture
Capturing WLAN Wi-Fi Packets on Android Read More »
Views: 4,184RFMON stands for Radio Frequency MONitor mode. It is a special mode for wireless network interfaces that allows a device to capture all radio traffic it can receive on a wireless channel, regardless of the intended recipient. All Wi-Fi radios can go into different modes, but that does not mean you can make that
Views: 7,228WlanHelper.exe is a command-line tool from the Windows Driver Kit (WDK) and the folks at nmap/npcap that is used to manipulate advanced Wi-Fi driver settings, especially for testing and development. It allows you to control wireless network adapter settings such as: Do You Already Have WlanHelper? It’s possible if you have installed Wireshark with
WlanHelper: How to Use It in Windows Read More »
Views: 2,562This is a common and great question. Simply answered, a wider channel in Wi-Fi results in higher bandwidth and throughput because it allows more data to be transmitted simultaneously. Here’s a breakdown of why: Channel Width and Frequency Space More Subcarriers = More Data Streams More specifically, in a 20 MHz channel, there are
Why is a Wider Wi-Fi Channel Faster? Read More »
Views: 3,951As a frequent reader here will know, my Wi-Fi Analyzer of choice is called WinFi. It has been around many years as is fabulous. In version 2, and the new version 3, you can capture Wi-Fi Beacon Frames and examine them. This post will explain what you can capture and how this is useful.
Capturing Wi-Fi Beacon Frames with WinFi Read More »
Views: 20,350Here is a list of interesting/useful network/IP commands for Windows. Most of these commands must be run from the CMD app. To do this Open Command Prompt: In the search bar, type cmd and press Enter, or press Win + R to open the Run dialog. Administrative Privileges: In some cases you will need
Network/IP Commands for Windows Users Read More »
Views: 5,565Retransmissions of frames in WLANs (Wireless Local Area Networks) can become problematic for several reasons, primarily due to the nature of the wireless medium. While retransmissions are a necessary part of ensuring data integrity in unreliable networks, they can cause inefficiencies and degrade network performance. I will get to the details below, but let’s
Recognizing WLAN Retransmissions is a Critical Skill Read More »
Views: 23,203Signal-to-Noise Ratio (SNR) is a measure of how strong a signal is compared to the background noise in a communication system. It is typically expressed in decibels (dB). The higher the SNR, the clearer and more reliable the signal. I often get asked, how is signal to noise calculated. Frankly the math is not
The Signal to Noise Ratio (SNR) Calculation Read More »
Views: 2,812That’s right folks. I have been searching and searching. I actually gave up for a while as the only thing available was PCIe based adapters. Well that all changed with a search today and this showed up: Here is the link. This will go through my Amazon Associate link – if you buy it,
A Wi-Fi 7 Tri-Band USB Adapter now available on Amazon Read More »
