March 11, 2026

Cracking the Code: My NetAlly LRAT 1500 Giveaway

 Im sure you are working on a problem that could use some serious network testing power.  Im sure that the netAlly LRAT 1500 could help solve your network mysteries. I'm putting together  an incredible quiz/draw. 


To be a true troubleshooter in this draw and to qualify, you absolutely must either be an email subscriber at https://blog.thetechfirm.com or be following all our social media channels or YouTube channel. All the links are conveniently located at the bottom of the blog's main page.  

Stay tuned, because full details are coming soon. The mystery is unfolding, and the prize is awesome!

What To Do When Your Network Decided to Ghost Itself

 

Your Network Decided to Ghost Itself

Your switch port is sitting there in Discarding state like it's on a bad date—totally up physically, link lights are happy, but it's refusing to pass any traffic. In modern speak (especially with Rapid Spanning Tree Protocol, aka RSTP), "discarding" is the cool new name for the old-school "blocking" state. The switch isn't broken; it's just being dramatically cautious. Think of it as the network's overprotective parent yelling "NOPE" to prevent total chaos.

March 10, 2026

From thenetworkdna - AAA Concepts

 

AAA Concepts: Authentication, Authorization, and Accounting

From thenetworkdna - AAA Concepts

The article introduces the essential AAA framework—Authentication, Authorization, and Accounting—as a foundational model for modern network security and access control. Rather than relying on basic, device-specific passwords, AAA offers a scalable, centralized approach to managing who can access systems, what they can do once authenticated, and how their actions are recorded for audit or billing purposes. By clearly defining and separating these three functions, organizations can establish stronger security policies while maintaining detailed records of user activity.

March 09, 2026

Why Is Your ‘Gigabit’ Port Is Only Doing 100 Mbps

Why Is Your ‘Gigabit’ Port Is Only Doing 100 Mbps


The first time i saw this switch , all sort of red flags shot up in my head. Do you see the issue here? I will give you a hint; the devices are all new (1 Gb ethernet), the switch has 1 Gb ethernet ports.

Ok here goes my rant....

You pay for gigabit. You bought the gigabit switch. The box literally says Gigabit Ethernet in bold, confident letters. And yet… your port is humming along at a very 2005-looking 100 Mbps. What gives? Before you start blaming your computer, your switch, or Mercury being in retrograde, take a breath — there are a handful of very common reasons your link decided to downshift.

The usual suspect? Cabling. Gigabit Ethernet needs all four twisted pairs inside that cable to work properly. Fast Ethernet (100 Mbps) only needs two. So if one pair is damaged, poorly crimped, bent, or simply missing (looking at you, mystery wall jack), the link will politely negotiate down to 100 Mbps and call it a day. A quick cable swap with a known-good Cat5e or Cat6 cable solves this more often than anyone likes to admit.

March 05, 2026

Basics of Wireshark – Session 1 – Setting up your Wireshark Install

Basics of Wireshark – Session 1 – Setting up your Wireshark Install

 The “Basics of Wireshark – Session 1: Setting Up Your Wireshark Install” article on InfoSecMonkey walks beginners through everything needed to get started with one of the most powerful network protocol analyzers available today. It begins with clear, accessible guidance on how to download and install Wireshark—whether you’re on Windows, macOS, or Linux—and ensures you understand the essential options and components that make the installation successful. By following this session, even those new to network analysis will gain confidence installing the software and preparing it for real-world use.

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