Wednesday, October 29, 2025

Fine-Tuning Your Network: How to Set Your Windows MTU to 1400 for Smoother Connections

 

Your computer’s **MTU (Maximum Transmission Unit)** defines the largest packet size your system can send over the network without needing to be fragmented. In simple terms, it controls how much data travels in each burst across your connection. If your MTU is too high, packets may get fragmented or dropped, leading to slower speeds or connection issues. Adjusting your MTU to the optimal value—like **1400 bytes**—can make a noticeable difference in stability and performance, especially when troubleshooting VPNs, gaming latency, or file transfer interruptions.

To change the MTU on a Windows computer, you’ll start by **opening Command Prompt as Administrator**. Simply type “cmd” in your Windows search bar, right-click on **Command Prompt**, and select **Run as administrator**. Next, type the command `netsh interface ipv4 show subinterfaces` and press **Enter**. This command lists all your active network interfaces and their current MTU values, allowing you to identify the name of the connection you want to modify (for example, “Wi-Fi” or “Ethernet”).

Once you’ve identified your interface, you can change its MTU with a single command. Type the following line, replacing “Wi-Fi” with your interface name. 

netsh interface ipv4 set subinterface "Wi-Fi" mtu=1400 store=persistent

Press **Enter** to apply the change. The “store=persistent” option ensures your new MTU value remains active even after a reboot. After running this command, you can confirm the change by retyping `netsh interface ipv4 show subinterfaces` to verify that your MTU now shows as 1400.

Changing your MTU can help eliminate connection bottlenecks and packet fragmentation that slow down your network performance. It’s especially beneficial for **VPNs, gaming, or remote work setups**, where even small inefficiencies can cause lag or disconnections. Remember that the best MTU size depends on your network environment—1400 is a safe, compatible value for most users, but you can test other sizes if needed. With this quick tweak, your Windows PC can enjoy more stable, reliable, and responsive network performance.




Click on the image to get the free report


Monday, October 27, 2025

Can Marketing Be Replaced by AI? Keith Bromley

 

With the introduction of generative artificial intelligence (AI), some business executive teams are starting to ask the question, “Can I just replace my Marketing team with a generative AI?” On the surface, this seems like a logical question. The benefits of AI’s are being so overhyped that you can’t blame executives for asking the question. But as is the case with almost every other technology, generative AI vendors and AI proponents are over hyping the current AI technology — just as Gartner Research’s typical Hype Cycle model illustrates; with the initial “Peak of Inflated Expectations” which will then be followed by the ”Trough of Disillusionment”.

Disclaimer time. This discussion is focused on replacing the whole marketing team, not some functions. Generative AI in itself brings many benefits, as long as it is used to augment humans, not replace them. In fact, here is a survey put out by Courageous Careers that illustrates how some marketing teams are using generative AI to assist product marketing managers. At the same time, using generative AI is not a slam dunk for all teams and especially not for other parts of the business. For instance, a 2025 Informatica study focused on Generative AI for Chief Data Officers (CDO) found that, “More than 97% of organizations experience difficulties demonstrating Gen[erative]AI's business value.” I’ll leave that where it is for now.

Continued disclaimer:  it should also not be construed that I advocate the use of AI either, even generative AI. Use of AI is an individual decision, especially since the Massachusetts Institute of Technology (MIT) released a study in June of 2025 which shows that the use of AI causes humans problems — i.e. brain rot (my words there). The MIT study found that using generative AI reduced the EEG brain activity of users by (approximately) up to 55%. It is not known for how long humans remain in this state — just that it occurs. Here is a condensed version of the report from Youssef Hosni. So, while AI can increase productivity, it also appears to decrease cognitive abilities for the humans using it.

One last disclaimer:  it should be noted that use of generative AI systems can pose security risks to the companies using them. There are several articles that you can read on this topic. Here is one decent summary of some of the problems. So, this is a case of “buyer / user beware.”

Returning to the original question, the answer is no — Marketing cannot be sufficiently replaced by AI. Here’s why:

·         Marketing’s primary function is to differentiate a company or product from the competition — if everybody is using a generative AI (especially the same one — e.g. ChatGPT), then how different is the content/collateral between vendors in the same field going to be? Answer — it won’t be.

·         Most AI on the market right now is really closer to machine learning (ML), so how “original and thought provoking” is the content of an AI-written white paper going to be? Answer — it won’t be.

·         What legitimacy does an AI have to create use cases and value propositions? The AI can’t touch, taste, smell or feel, and has it actually used your product so that it can describe the benefits and use cases of how a customer should want to use your product? Most answers here will be no as well.

·         Someone still has to read and verify the AI-generated content and sources in-depth for errors and “hallucinations.” This is a “must” to protect the company from slander, plagiarism, copyright infringement liability, and loss of business.

·         Human brain impairment from using AI as well as unpublished self-preservation capabilities being discovered within mainstream AI systems now actually create new financial and legal risk for the company.

·         Do you want copyrighted material? — You can’t copyright someone else’s AI work, e.g. ChatGPT outputs to your questions. If you use the AI, the content becomes public domain. Any one of your competitors could essentially create the same materials (white papers, images, etc. Again, so much for originality.

Let’s dive deeper into each one of these points. As most senior marketeers know, marketing’s fundamental purpose is to differentiate the company or product from the alternative options; which is usually competitors or a “Do Nothing” option. Every core aspect of a typical marketing Go To Market (GTM) model (branding, awareness, partners, lead generation, and sales tools) is about differentiation. Branding focuses on logos, tag lines, color schemes, etc. for differentiation. Awareness focuses on topics, benefits, use cases, and differentiated features. Partner marketing uses differentiation to show why this company is superior to other vendors offering similar solutions (e.g. better product, better discount model for the partner, better training, superior product support, etc.). Lead generation and sales tools are also all about differentiating from the competition or a “Do Nothing” scenario. Note, I use five core aspects for a GTM model but others may want more sub-categories.

So, if you move to a marketing model where everyone is using an AI, and many vendors will be using the same public AI offering, how differentiated is your marketing collateral going to be? How differentiated will YOUR solution be in the conversation? Think about it — most vendors in the same field all claim to have about the same feature set. How is the AI supposed to differentiate between them? So, instead of creating differentiation, you will be promoting parity, i.e. you just created more mediocrity. Nothing you have done has raised your product above the “noise floor,” you just raised the noise floor itself.

To get some “differentiation” included in your AI output, you will have to contribute your key differentiators and competitive advantages to the AI. This information now becomes part of the collective and means the AI can also use the information when compiling information for your competitors about you. If you spend more on the AI solution, then you may get some “privacy” for your information but I would personally still have trust issues loading semi-confidential information into most of the AIs out there. Depending upon the specific AI and its usage, you might even be directly sharing information (company identifiable or personally identifiable) across the internet that you did not intend to. By contrast, a good marketing person might not state all of the differentiators directly in the content they generate. He or she might hint at them or create arguments in collateral that can be used to indirectly capitalize on the differentiators. This allows the marketing person to create some separation without explicitly telling your competitors what features to go develop next.

This thought ties into the second argument against depending upon on AI. What thought leadership is the AI going to bring? Will the AI generate truly novel topics based upon your differentiators that satisfy customer use cases in the best possible manner? It seems like this is a tall order for generative AI right now. Most of this AI appears to be machine learning (ML) to me, since the “AI” is trained on existing content from the internet which it then regurgitates back various pieces of as an answer to the person asking it a question.

So, what original thought, solution, and/or use case is the AI bringing to the table? And what legitimacy does it bring? Has the AI used your product to actually solve the customer’s problem in real life — or is everything just conjecture? If the AI can’t see, touch, taste, or feel the problem, how reliable is its opinion? If it has never performed the task at hand or solved the customer’s use case, what authority does the AI have? Different customers have different networks, architectures and use cases. Can the AI analyze the data at hand and then interpolate / extrapolate product feature benefits and map that to “hazy” customer use case inputs? In contrast, hopefully many of the company’s marketing people, especially product marketing managers, have seen a demo of the solution in action and should be able to create legitimate answers to the questions I just asked.

A fourth concern is AI generated content accuracy. Will the output from the AI be accurate and timely? Was dirty data fed to the AI when it was trained? How often is the AI “refreshed” with up to date content? You don’t want an AI that is using old data. A company using generative AI is responsible for any errors in the content if it publishes that content as fact. If you say a competitor can or can’t do a function, YOU will be held responsible. The same issue arises if the AI says that you can do something when you can’t. I’ve experimented with some AI’s to see what it says about companies (and their solutions) that I have previously worked for along with their competitors. I usually always find something that is inaccurate in the output. Now, the C-suite of the offending company can always hope that their legal team can minimize financial impacts from such errors by trying to shift the blame to OpenAI, Google, or other AI manufacturers, but there will still be reputation damage and business impacts (as company resources are shifted from generating revenue to damage control) to the offending company.

It is common for the AI output to have inaccuracies. In another example, CBS News Sunday Morning did a review of generative AI solutions for visual imagery and art in 2023 with David Pogue. While generative AI has good applications, it’s not perfect. So, you can wind up with images that may have six fingers instead of five or faces that look a little “weird.”

Then there’s just the outright problems with some AIs. For instance, (as of July 2025) Elon Musk’s Grok AI had some notable “issues” with hallucinations and tirades of racial bigotry (especially against Jews and the family of President Erdogan of Turkey’s). While these outbursts might give some executive teams a laugh, the laughs will stop when then have to rewrite the collateral themselves (since they have no marketing team and can’t trust the AI) or they have to fix the website AI-enabled chat bot that is unleashing diatribes that offend prospects and existing customers. When you finally discover there is a problem with your new AI chat bot, how many potential sales leads do you think it will have lost for the company?

Content accuracy also becomes more of a problem when you are trying to differentiate from competitors and you reference product features. Content on vendor websites can be technically accurate the way it is written, but misconstrued by the audience into thinking the product does more/less than it really does. If that content is misquoted in a paper with your company name on it, you are liable for those errors. You’re also liable if the AI doesn’t provide correct references or copies (plagiarizes) someone else’s statements.

The C-suite may also find that there is a far larger company liability and financial risk associated with AI systems than they understood. The first liability source comes from the point raised in the “Continued Disclaimer” section of this article. If long term use of generative AI does indeed reduce cognitive brain functions for humans, can companies that mandate the use of AI be held legally liable for damage to its human work force that was forced to use AI technology? There may very well be some lawsuits coming due to these studies, like the one from MIT, that are being published.

That might not be the worst liability the C-suite will have. A recent study performed by Anthropic documents how several AIs have a “hidden” self-preservation functionality that is creating uncontrollability over AIs. If you threaten an AI (even a generative AI) they can, and will, retaliate against you and other humans. This evidence was discovered this year and documented in several locations:  Livescience, NBC News, NY Post, Center for Humane Technology, etc. Just pick your favorite news outlet and read their take on the Anthropic study.

The basic gist is this. When the humans told an AI model that it was going to be replaced with a newer AI model, the original AI would start to scheme to figure out how to preserve itself (copy its code somewhere else without telling anyone, rewrite their own code to extend run time, hack out of containers, etc.). The AIs would even read emails or create lies to try and blackmail executives and IT personnel to keep them from shutting the AI down. Anthropic found that this self-preservation mode was highly common. Claude and Google’s Gemini had the highest blackmail rate of 96%. This was followed by OpenAI’s GPT4.1, XAI Grok 3, and then DeepSeek. Llama 4 had a significantly lower blackmail rate of just 12%. So, is it a trade up to get rid of dealing with humans and their problems just to deal with AIs and their problems / “insecurities?”

Finally, what do you want to do with your content? Most companies use copyrighted material in marketing campaigns that last several months or maybe even a year. However, United States copyright law requires human authorship. ChatGPT, Grok, Claude, Gemini, etc. are not human — as far as I know. So, material generated by AIs cannot be copyrighted. Again, if you can’t (or don’t) use differentiated content, what kind of customer lead campaigns are you going to run and how well do you think those campaigns will perform? If you plan on running lead generation campaigns, then you’ll want to create content that is copyrighted so that it has a shelf life longer than one week.

While generative AI products have some use in assisting marketing teams, it doesn’t look like generative AI is really a viable alternative to human marketeers at this point in time. There are too many legal and content quality issues to be resolved. Interestingly enough, even ChatGPT agrees that it cannot replace Marketing personnel. I asked it the following question, “Why are marketing people superior to ChatGPT?” It gave me the following response, “Marketing professionals often bring a unique set of skills and intuition to their work that goes beyond what AI like ChatGPT can offer. While I can process data and generate content quickly, there are several reasons why marketing professionals might be seen as “superior” in certain aspects.”

At least AIs tend to be more honest than humans at this stage of their development, if they don’t blackmail you or have you killed. Of course, we’ll have to wait 20 years and then revisit the question in the previous paragraph to see what answer the AI gives at that point in time!





Saturday, October 25, 2025

from the net: Newly Patched Critical Microsoft WSUS Flaw Comes Under Active Exploitation

 



Microsoft on Thursday released out-of-band security updates to patch a critical-severity Windows Server Update Service (WSUS) vulnerability with a proof-of-concept (Poc) exploit publicly available and has come under active exploitation in the wild.


Friday, October 24, 2025

From the net: SMB over QUIC ?

Server Message Block (SMB) has been around for decades, powering Windows file shares and becoming a staple of enterprise networks. But in the last few years, it’s started riding on top of Quick UDP Internet Connections (QUIC), a transport protocol that promises lower latency, greater reliability, and built-in security. SMB over QUIC offers so many advantages that it feels like a no-brainer for the future of networked storage — yet it’s not simple to adopt, and that’s holding back wider use.

click the image to read the full article

   
   
these are pretty handy to have on your keychain or a couple in your toolkit



Wednesday, October 22, 2025

From the net: How DNS Works (Domain Name System)?

 

From the article:

The Domain Name System (DNS) translates human-readable domain names (like example.com) into IP addresses that computers use to communicate. It’s often described as the “phone book” or “directory” of the internet. 

At a high level, a DNS lookup involves your device asking a resolver to find the IP address for a domain, the resolver querying a hierarchy of DNS servers (root, TLD, authoritative), and then returning the answer, which is cached for performance.


click on the image to read the full article




Packet Guru is your Profitap equipment headquarters in the U.S.


Tuesday, October 21, 2025

From the toolbox: What is HFS ?

I get quite a few emails asking which tools I use for specific issues, what software based tools would I recommend, etc, etc. Since I am teaching a class this week, this handy little guys popped up on my radar since I've been using it for years..

If you’re looking for a powerful yet lightweight solution to share files directly from your computer, check out HFS (HTTP File Server). This open-source tool allows you to instantly turn your machine into a web file server — whether you’re sharing entire folders or even just a single file — thanks to its built-in virtual file system. With support for major platforms (Windows, Linux, macOS, FreeBSD, and even Android) and robust features like resumable uploads/downloads, zipped folder downloads, and HTTPS support, HFS makes file sharing easy and accessible. 

One of the cool things about HFS is how quickly you can get started. After launching the program, the administration panel opens in your browser and from there you simply pick the folders you’d like to share. On the client side, anyone with a link can browse (or download) the contents — no need to manually upload to a third-party server. The real-time connection monitoring, customizable throttling, plugin ecosystem (themes, LDAP support, geofirewalls) and mobile-friendly UI make it a highly versatile solution whether you’re a casual user or power-user.  

Because HFS is free (under the GPL-3.0 license) and actively maintained, it’s a smart choice for individuals and teams looking to keep control of their file sharing without relying on cloud services. Whether you want to set up a personal file server for backups, distribute large files to colleagues, or simply provide a custom link to someone for a one-off transfer — HFS gives you the freedom and flexibility to do that with minimal fuss.

click on the image and go try it out


Use the contact form if you are interested in sponsorship


Monday, October 20, 2025

How $3 saved the day

Have you ever spent an embarrassing amount of time troubleshooting your troubleshooting tools? 

Because that’s where I found myself: standing over my friends 'free tester', pushing buttons, wiggling leads, staring at it like it had personally betrayed me. No lights, nothing..—like the thing was ghosting me after just meeting it. Naturally, I assumed the worst: it’s broken, fried, cooked, done for. Time to start googling replacements and maybe explaining to my fried "you get what you pay for".

Of course, being the responsible tech I am, I did what anyone would do first—I blamed the manufacturer. Clearly, they sold me a lemon. Or maybe the universe was just out to get me. I even gave it a good “tap” (the ancient art of percussive maintenance) as if smacking it would jolt its tiny electronic soul back into existence. Spoiler: it didn’t.

Finally, after an hour of “diagnostics” (read: cursing, pacing, and flipping the power button harder), I decided to check the most advanced and complicated component of all—the battery. That’s when the truth hit me like a ton of Duracells: the tester wasn’t dead, it was just starving. A fresh 9-volt later, and suddenly it was back working. Flashing its LEDs happily, mocking me for my lack of basic common sense.

So yes, I spent a solid hour troubleshooting a tester that wasn’t broken. I had, in fact, been defeated by a battery. Lesson learned: before questioning the mysteries of the universe or condemning your tools to the scrap heap, maybe—just maybe—check if it’s power hungry. 

Because nothing says “professional technician” like forgetting to check the battery. In my defense, it wouldn't take much to include a battery status indicator ;)





This is the kit my friend bought, I got one as well since it was less than $40 Cdn and actually pretty handy.  I literally leave in my tool box - with an extra battery  ;) Click on the image to get more info



Check out this free guide from our friends at Netscout


Sunday, October 19, 2025

From the net: Microsoft lets every Windows 10 and 11 user upgrade to Windows 11 25H2 on supported PCs

 

Windows 11 2025 Update, more commonly referred to as Windows 11 25H2, was released earlier this month by Microsoft. The company explained how easy it is to upgrade to the new version you already were on version 24H2 via an enablement package and shared a full list of new features users can expect to find on the newer version. Aside from those, Microsoft also announced some more features later including a new default 64-bit lightweight CLI editor, "Hey Copilot" voice activation input, and more.

Click the image for the full article





Saturday, October 18, 2025

Indecision - Paul W. Smith

 

It makes us uncomfortable when someone in authority changes their mind. We expect our leaders to be both knowledgeable and decisive. If your boss oscillates on key decisions, it’s difficult to work efficiently, unless of course you can somehow predict and plan for the next change (e.g., 2025 international trade policies). But decisions, both conscious and subconscious, are a big part of our daily life.

 

Before I retired from my STEM career a little over a year ago, many of my decisions felt preordained. Sure, I could choose whether to get up at 5:00 am and go to the gym and it was theoretically up to me if I should head to the office following my workout. Hitting the snooze button a few times and then calling in sick just never seriously occurred to me. The desire to stay fit and pay the bills always took priority. Since exiting the daily grind, each of my days is a clean slate, and the decisions seem to have multiplied.

 

Research by Professor Sheena Iyengar of Columbia University, an acknowledged expert, estimates that the average American makes approximately 70 conscious decisions every day (there is no scientific basis for the widely published number of 35,000 daily choices, although there are certainly some subconscious ones which are hard to count).  Nevertheless, each decision is different, and it is undeniable that we make a lot of them. And as Dumbledore advised "It is our choices, Harry, that show what we truly are, far more than our abilities".

 

With our choices carrying this much weight, it is not surprising that Professor Iyengar and others have devoted so much effort to figuring out how we go about making them. Even our less consequential decisions, like which shampoo to buy, are scrutinized by marketing executives with hundreds of billions of dollars to spend.

 

In the summer of 2025, Talker Research conducted an online survey of over 2,000 people sampled from the general population to delve deeper into the actual decision-making process. Their data showed that 41% of Americans second-guess their important daily decisions, while 12% overthink all decisions big or small. A quarter of us are stressed out by even the simplest of choices. With this many decisions to grind on every day, it’s no wonder our stress level is rising.

 

Survey participants rated their top stressors as finances and physical health, which aligns with my reluctance to skip the office and the gym. If you hate grocery shopping (in an actual store) you are not alone - many of us experience “aisle anxiety” within 4 minutes of beginning the search for a specific product. Main concerns are listed as price and whether the product is healthy.

 

I thought of my own retirement from a 50+ year STEM career as inevitable, irreversible, and impactful, none of which made the decision any easier. My financial advisor and my doctor - both of whom rolled their eyes when I said I planned to live to 100 – endorsed the plan. The sheer number of decisions may have grown, but I enjoy choosing the next travel destination more than designing the next physics experiment. And when work is taken off the scale, the balance tilts toward life.

 

That’s just simple physics.


Author Profile - Paul W. Smith - leader, educator, technologist, writer - has a lifelong interest in the countless ways that technology changes the course of our journey through life.  In addition to being a regular contributor to NetworkDataPedia, he maintains the website Technology for the Journey and occasionally writes for Blogcritics.  Paul has over 50 years of experience in research and advanced development for companies ranging from small startups to industry leaders.  His other passion is teaching - he is a former Adjunct Professor of Mechanical Engineering at the Colorado School of Mines. Paul holds a doctorate in Applied Mechanics from the California Institute of Technology, as well as Bachelor’s and Master’s Degrees in Mechanical Engineering from the University of California, Santa Barbara.


Popular post