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Web Development · Intermediate · Online

Network Troubleshooting for Tier-1

Walk through layered troubleshooting: DNS, DHCP symptoms, VPN handshakes, and Wi-Fi basics. Labs use packet captures and checklists appropriate for first-line staff.

₩1,050,000 · 6 weeks

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Cover for Network Troubleshooting for Tier-1 course

What is included

  • Layered troubleshooting checklists
  • DNS and DHCP symptom labs
  • VPN common failure patterns
  • Wi-Fi signal and channel basics
  • Packet capture orientation
  • Escalation packages for network teams

Outcomes

  1. Resolve five scripted connectivity scenarios
  2. Assemble escalation bundles with logs and timestamps
  3. Explain trade-offs in basic Wi-Fi changes to users
Portrait of Oliver Grant

Oliver Grant

Network educator; CCNP-level background mentoring support tiers.

Reviews

Escalation bundle template saved our engineers twenty minutes per ticket on average last quarter.

Wei · Co-working operator · 4/5

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