Wi-Fi

How to Set a WLAN Frequency or Channel in Linux for Wireshark Packet Capture

Networking and Computing Tips and Tricks / By

Post Views: 605 Learning 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 […]

How to Set a WLAN Frequency or Channel in Linux for Wireshark Packet Capture Read More »

, , ,

Windows PowerShell Commands for Wi-Fi and WLANs

Networking and Computing Tips and Tricks / By

Post Views: 6,525 Below 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

Windows PowerShell Commands for Wi-Fi and WLANs Read More »

, , , ,

Is Wireshark a Red Team or Blue Team Tool?

Frequently Asked Questions / By

Post Views: 2,249 Great 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

Is Wireshark a Red Team or Blue Team Tool? Read More »

, , , , , , ,

Capturing WLAN Wi-Fi Packets on Android

Networking and Computing Tips and Tricks / By

Post Views: 1,966 Before 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

Capturing WLAN Wi-Fi Packets on Android Read More »

, , ,

WlanHelper: How to Use It in Windows

Networking and Computing Tips and Tricks / By

Post Views: 4,678 WlanHelper.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

WlanHelper: How to Use It in Windows Read More »

, , , ,

Why is a Wider Wi-Fi Channel Faster?

Frequently Asked Questions / By

Post Views: 1,646 This 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,

Why is a Wider Wi-Fi Channel Faster? Read More »

, , , , ,

Capturing Wi-Fi Beacon Frames with WinFi

Networking and Computing Tips and Tricks / By

Post Views: 2,700 As 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

Capturing Wi-Fi Beacon Frames with WinFi Read More »

, , , ,

Our Comprehensive Wi-Fi Troubleshooting Guide

Networking and Computing Tips and Tricks / By

Post Views: 1,883 Hi 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. 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 »

, ,

Network/IP Commands for Windows Users

Networking and Computing Tips and Tricks / By

Post Views: 12,591 Here 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

Network/IP Commands for Windows Users Read More »

, , , , , , , , ,

Recognizing WLAN Retransmissions is a Critical Skill

Networking and Computing Tips and Tricks / By

Post Views: 4,470 Retransmissions 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,

Recognizing WLAN Retransmissions is a Critical Skill Read More »

, , , ,

The Signal to Noise Ratio (SNR) Calculation

Frequently Asked Questions / By

Post Views: 18,254 Signal-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

The Signal to Noise Ratio (SNR) Calculation Read More »

, , , , ,

A Wi-Fi 7 Tri-Band USB Adapter now available on Amazon

Networking and Computing Tips and Tricks / By

Post Views: 2,248 That’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

A Wi-Fi 7 Tri-Band USB Adapter now available on Amazon Read More »

, ,

Why ISP Technicians Need Routine Wi-Fi Skills Training

The CellStream Blog / By

Post Views: 1,706 Service provider technicians need routine Wi-Fi skills training and they need to know how to troubleshoot Wi-Fi networks for several important reasons: Troubleshooting Wi-Fi networks is essential for service provider technicians to ensure reliable service, maintain customer satisfaction, and keep up with the fast-paced advancements in networking technology. Because the Wi-Fi network

Why ISP Technicians Need Routine Wi-Fi Skills Training Read More »

, , ,

A List of USB Wi-Fi Adapters that support Monitor Mode

Networking and Computing Tips and Tricks / By

Post Views: 204,706 So many folks use Windows and they want to capture Wi-Fi traffic in Monitor Mode (aka RFMON) using their onboard Wi-Fi adapter, and, for those of us who have tried, we all know how problematic that is. The answer as discussed in my post here is to use an external adapter. You

A List of USB Wi-Fi Adapters that support Monitor Mode Read More »

, , , ,
Scroll to Top