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🌐 Common Network Troubleshooting Steps for Beginners

Network issues are common—slow internet, no connection, or “limited access” errors. If you’re a beginner in networking, don’t panic. Most problems can be solved by following simple, logical steps.

🔍 Step 1: Identify the Problem Clearly

Before fixing anything, ask:

  • Is the internet slow or completely down?

  • Is it affecting one device or all devices?

  • Is it Wi-Fi only or LAN also?

📌 This helps narrow down the root cause.

🔌 Step 2: Check Physical Connections

Many issues are hardware-related.

✔ Ensure Ethernet cables are plugged in properly
✔ Check for damaged or loose cables
✔ Confirm router, modem, ONT, or switch has power
✔ Look for blinking indicator lights

💡 No lights = power problem

🔄 Step 3: Restart Network Devices

This solves 80% of basic issues.

🔁 Restart in this order:

  1. Modem / ONT

  2. Router

  3. Switch

  4. Computer / Mobile

Wait 30–60 seconds before turning devices back on.

📶 Step 4: Check Wi-Fi Connection

If Wi-Fi is not working:

✔ Make sure you’re connected to the correct SSID
✔ Re-enter the Wi-Fi password
✔ Check signal strength
✔ Move closer to the router

📌 Weak signal = slow or unstable internet

🌐 Step 5: Check IP Address

On your device:

  • Windows: ipconfig

  • Linux/Mac: ifconfig / ip a

✔ Valid IP (e.g., 192.168.x.x) = OK
❌ 169.254.x.x = DHCP issue

💡 Fix: Restart router or renew IP

📡 Step 6: Test Connectivity Using Ping

Use ping to check network reachability.

ping 127.0.0.1        # Local system
ping 192.168.1.1      # Router
ping 8.8.8.8          # Internet
ping google.com       # DNS check

📌 Where ping fails tells you where the problem is.

🌍 Step 7: Check DNS Issues

If websites don’t open but ping works:

✔ Try using public DNS:

  • 8.8.8.8 / 8.8.4.4 (Google)

  • 1.1.1.1 (Cloudflare)

📌 DNS issues = “Website not found” errors

🔐 Step 8: Disable Firewall or Antivirus (Temporarily)

Sometimes security software blocks internet access.

✔ Temporarily disable and test
✔ Re-enable after testing

⚠ Never keep it disabled permanently

🖧 Step 9: Check Router / ONT Configuration

Log in to router:

  • Verify WAN status

  • Check PPPoE / DHCP settings

  • Confirm VLAN configuration (for ISP networks)

📌 Wrong settings = no internet

🧪 Step 10: Test with Another Device or Cable

✔ Try another phone/laptop
✔ Change Ethernet cable
✔ Connect directly to modem/ONT

📌 Helps confirm if the issue is device-specific

🧠 Step 11: Look for ISP Issues

✔ Check ISP app or website
✔ Call customer support
✔ Ask neighbors if they face the same issue

📌 Sometimes the issue is not on your side

🛠️ Basic Tools Every Beginner Should Know

  • ping

  • tracert / traceroute

  • ipconfig / ifconfig

  • Speed test websites

🧾 Simple Troubleshooting Flow

No Internet
   ↓
Check cables & power
   ↓
Restart devices
   ↓
Check IP & Wi-Fi
   ↓
Ping & DNS test
   ↓
Router config / ISP

🏁 Final Thoughts

Network troubleshooting is about logical thinking, not guesswork. Start from simple checks and move step-by-step toward advanced ones.

🔧 Always fix the basics before touching advanced settings.

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