Wiki Article · Cinematic

Network Troubleshooting

Overview

Network Troubleshooting — Quick Facts

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Property: Detail

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Topic: Network Troubleshooting

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Category: Networking / System Engineering /…

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Approach: Systematic — OSI-based,…

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Lead

🌐 Network troubleshooting woh systematic process hai jismein network problems ko identify,…

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Infobox

📡 | Property | Detail | |---|---| | Topic | Network Troubleshooting | | Category |…

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1. Troubleshooting Methodology

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Bottom-Up — Layer 1 (Physical) se…

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Top-Down — Layer 7 (Application)…

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Divide-and-Conquer — Middle layer…

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2. Common Network Problems

🛜 | # | Problem | Symptoms | Possible Causes | First Diagnostic Step |…

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3. Troubleshooting Tools

⚡ | # | Tool | Purpose | Platform | Example Command / Use | |---|---|---|---|---| | 1 |…

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4. OSI Layer-Based Troubleshooting

🔧 `mermaid flowchart TD Start[Network Issue Reported] L1{Layer 1: Physical<br/>Cable…

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5. Physical Layer Troubleshooting

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Cable — properly plugged? Damaged…

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Link Light — switch aur device…

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Port — switch port dead toh nahi?…

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NIC — network interface card…

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6. Network Layer Troubleshooting

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ipconfig /all (Windows) ya ip addr…

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IP address correct range me hai?

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Subnet mask correct hai?

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Default gateway configured hai?

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7. DNS Troubleshooting

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Website name se nahi khulti lekin…

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"DNS_PROBE_FINISHED_NXDOMAIN"…

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Wrong DNS server configured —…

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DNS server down — alternate DNS…

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8. Performance Troubleshooting

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iperf3 se actual bandwidth measure…

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ISP speed test vs internal network…

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Bandwidth monitoring tools — PRTG,…

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ping se round-trip time check karo

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9. Wireless Network Troubleshooting

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Signal strength check karo —…

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Walls, floors, metal objects…

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WiFi analyzer app se signal…

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2.4 GHz band: microwave,…

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10. Best Practices

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Network diagram updated rakhna —…

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Change log maintain karna — kab…

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Known issues aur solutions…

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Network ka normal behavior record…

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11. Glossary

⚡ | # | Term | Definition | |---|---|---| | 1 | Troubleshooting | Systematic process…

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14. Disclaimer

🔧 Yeh article sirf educational aur informational purposes ke liye hai. Network…

Diagram

Visual Flow

📊 Diagram visualization — details in narration

Quiz — Question 1

Network Troubleshooting ka 'Topic' kya hai?

Complete! 🎉

Network Troubleshooting Complete!

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