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4 Tips to Strengthen Your Troubleshooting Skills

March 05, 2021
Daniel Cummins

Learn how to save time by becoming a better troubleshooter

Despite our best efforts in preventative maintenance and monitoring, our technology is destined to fail. Our hope is for a graceful failure but inevitably it ends up more like a catastrophe! While I’m being slightly hyperbolic, the core statement is still true: stuff breaks. This is where the art of troubleshooting comes in.

Yeah, that’s right. I said “art,” not “science.” While there are many variations on troubleshooting methods and models, and many training courses and certification paths that cover steps to troubleshooting, the best troubleshooters don’t necessarily follow a strict manual or script. They use their knowledge of the working system, past experience and yes, a little intuition, to determine the root cause and a path to a solution. It’s not always a straight path. Even the most experienced troubleshooter can be surprised on occasion by an off-the-wall solution.

For you fledgling troubleshooters out there, here are four tried and true guidelines to help you work through a challenging repair, reaching a solution without much wasted time and resources.


1. What’s wrong?

It’s nearly impossible to properly fix a problem if you cannot see the problem, especially with computers. There are really only two ways to “see” the problem. Either someone can explain it to you in the correct amount of detail or you have to somehow recreate the problem in order to observe it yourself. Considering that most issues present to basic users, individuals with little to no technical skillset, it’s unlikely you’ll get everything you need from them. So, we must attempt to get the computer to do what the user claimed it did. In the end, if you cannot reproduce it, the best thing to do is nothing. Tell the user to get screenshots of the issue the next time it occurs, or to allow a technician to see the problem before it goes away.


2. Keep it simple, stupid!

No, I’m not calling you stupid … it’s an expression. But I like the sentiment. It’s easy, especially as we get more technical knowledge and experience, to get really creative in our troubleshooting and seek out complex (and exciting) solutions. Maybe it’s because we are trying to impress our boss. Or maybe it’s because with experience, we forget about the simple stuff. But I would argue that finding simple solutions will make your boss happier with you.

Let me say it this way, if you cannot connect to the network, would your boss prefer a request for a new router or to swap out a cable? Probably the cable, because the solution would be cheaper, faster and the least disruptive to the network. As a general rule, try to think of the cheapest and easiest solutions first before moving on to more challenging and expensive options. And don’t talk yourself out of the more obvious solutions, either. While we tend to poke fun, “is it plugged in?” “is it turned on?” and “have you tried turning it off and on again?” are often successful solutions to fixing most of our issues. It is estimated that more than 80 percent of networking issues are related to the Physical Layer of the OSI model.


3. Practice, practice, practice

There are a lot of books, courses and study guides on troubleshooting. As an instructor, I find great value in having resources to consult while getting started as a technician. But if you really want to excel as a troubleshooter, just get in there and do it. Find a broken computer and try to make it work. Hands-on experience is invaluable in building your skills. You can read about bad memory, but until you’ve actually held a memory module in your hand, heard those beep codes during POST or replaced a module on a motherboard, you don’t really understand memory errors.


4. “I don’t know”

That phrase often strikes fear into the heart of a technician. No one likes to admit when they are in over their head. But a good technician doesn’t run from lack of knowledge. Instead, not knowing something should drive you to learn. It’s especially difficult when you have a customer or end-user waiting with bated breath for you to swoop in and save the day. You don’t want to let them down. But I guarantee, a user will be much happier if you say, “give me a few hours to research this issue and I’ll get right back to you” than if you waste time pretending to fix something even though you have no idea what you are doing. Honesty does go a long way in this situation. But where do you go to get more information?


4.1 Vendor documentation

The vendor documentation isn’t a bad start. Product manuals often have a troubleshooting section with some common issues and possible solutions.


4.2 Ask your peers

Perhaps there’s a more senior technician who has experienced this before and can offer some guidance.

A word of warning for the less experienced: don’t ask the same question more than once. It makes it look like you either weren’t listening or you didn’t really understand and perhaps aren’t up for the task. Take good notes and pay attention to what is said.

If you’re a peer being asked for help, this is not a time to hoard information. For many years, technicians felt competition from younger, newer employees. Perhaps it was because the older technicians had to work a little harder to get to this level and the younger generation seemed to be more intuitive about technology. Often, there is a misguided belief that if you are the only one who knows how to fix it, you are therefore invaluable and have greater job security. In reality, you are putting your organization at great risk.

We often talk about redundancy and removing single points of failure in an organization. If you are the only one who knows, you are a single point of failure. It is in the best interest of the organization that at least two people have the answer. That way if one is out of the office, the other can take care of it. Consider the boss’s perspective. What is more valuable, an employee who has to do it all themselves, or one who is a team player and brings everyone up to their level? Be a team player. Share information with your colleagues.


4.3 Search Google, check out message boards. But remember, it’s public.

Another great resource is the internet. User and technician forums are an excellent place to get help, though probably not immediately. Just remember to keep your questions a little on the vague side. Keep in mind that you are likely working on confidential infrastructure and giving away too much detail on a public forum may be considered a security breach or a breach of privacy. Sites like are a great place to search for answers to common and uncommon problems alike. The best lesson I ever learned came from my first boss after becoming a technician. Every time I asked for help, he would say, “have you Googled it yet?” It helped me become a much stronger and more independent troubleshooter.


With these maxims, you can strengthen your troubleshooting skills and become invaluable to your organization. When problems arise, people won’t panic—they’ll call you.

If you are getting started and want to know more about troubleshooting your PC hardware and software, I recommend the Global Knowledge IT Fundamentals course or working toward your CompTIA A+ certification. For networking technicians, the CompTIA Network+ certification or the Troubleshooting with Wireshark course is a good place to start.


Recommend courses to become an expert troubleshooter



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