Training
IT Support Training
Learn practical, job-ready IT support skills from a systems engineer with 9+ years in the field. Start with our free lessons, then go further with the full course.
Free lessons
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- Lesson 1 · How computers and networks talk
- Lesson 2 · A troubleshooting method that always works
- Lesson 3 · "I can't get online" in five checks
- Lesson 4 · Accounts, passwords and MFA
- Lesson 5 · Talking to users like a pro
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Lesson 1 · How computers and networks talk
Every device on a network has an IP address (like a street address) and a MAC address (like a serial number). Your router connects your local network to the internet and hands out IP addresses using DHCP. DNS translates names such as nstechglobal.com into IP addresses.
Try it: On Windows, open Command Prompt and type ipconfig /all. Find your IP address, default gateway (your router) and DNS servers. On a Mac, use ifconfig or System Settings → Network.
Lesson 2 · A troubleshooting method that always works
Professionals follow the same six steps every time:
- Identify the problem — ask what changed, when it started and who is affected.
- Establish a theory — start with the simplest cause (power, cables, logged in?).
- Test the theory — if it’s wrong, form a new one.
- Make a plan and fix it.
- Verify the whole system works, not just the symptom.
- Document what you found and did.
This is the same method used in the CompTIA A+ exam.
Lesson 3 · "I can't get online" in five checks
- Is it one device or everyone? Everyone → check the router and internet provider.
- Is Wi-Fi connected, or the cable plugged in with link lights on?
- Does the device have a valid IP address? (An address starting with 169.254 means it didn’t get one from DHCP.)
- Can you reach the router?
pingyour default gateway. - Can you reach the internet by IP but not by name?
ping 8.8.8.8works but websites don’t → it’s a DNS problem.
Restarting the router and the device fixes many issues — but always find out why.
Lesson 4 · Accounts, passwords and MFA
Most real-world support tickets are login problems. Know how to: reset a password safely (verify the person’s identity first!), unlock an account, set up multi-factor authentication (MFA), and explain password managers to users.
Golden rule: never ask a user to tell you their password, and never send passwords by plain email or text.
Lesson 5 · Talking to users like a pro
Technical skill gets you hired; communication gets you promoted. Listen fully before you answer. Repeat the problem back in their words. Avoid jargon. Tell them what you’re doing and how long it will take. Close every ticket by confirming it’s fixed and explaining how to avoid it next time.
Write it down: a short, clear ticket note saves the next technician hours.
Full course
IT Support Fundamentals — Full Course
A complete, hands-on course that takes you from beginner to help-desk ready: hardware, Windows and macOS, networking, Microsoft 365 administration, security basics, ticketing and customer service — with practice labs, a capstone ticket queue and a certificate of completion.
- ✓ 8 modules, 40 self-paced lessons
- ✓ 8 hands-on labs you complete on your own computer
- ✓ Windows, macOS, networking and Microsoft 365
- ✓ Security fundamentals, MFA and phishing awareness
- ✓ 10-ticket capstone plus resume and interview prep
- ✓ Certificate of completion and a CompTIA A+ study plan
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$199 $119
Launch price — regular $199.
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