Date: 2025-09-09 • Created: 2025-09-09 22:30
Objective:
Troubleshoot network connectivity issues after lightning strike. Core 1 • 5.7 – Given a scenario, troubleshoot problems with wired and wireless networks
Troubleshoot network connectivity issues after lightning strike. Core 1 • 5.7 – Given a scenario, troubleshoot problems with wired and wireless networks
Environment:
Host: Custom desktop "TheBringerofTech" Network: Xfinity modem/router combo (rented) Issue: No internet connectivity after severe thunderstorm Physical damage: Multiple electronics affected
Steps Taken:
1) Checked all physical connections - Ethernet cable, power cables 2) Rebooted modem/router - unplugged for 30 seconds, plugged back in 3) Tested with different Ethernet cable 4) Checked Windows Network settings - showed "No network access" 5) Ran Windows Network Troubleshooter - no issues found 6) Called Xfinity support - confirmed line/signal issues on their end 7) Technician visit scheduled and resolved external line damage
Results:
Initial attempts (cable swapping, reboots) didn't work because the issue was external. Network connectivity restored after Xfinity technician repaired damaged line infrastructure. System network settings were fine - the problem was upstream.
Lessons Learned:
Lightning/electrical storms can damage ISP infrastructure, not just home equipment. Physical troubleshooting steps (cables, reboots) should be done first, but don't overlook external factors. ISP support can quickly determine if the issue is on their network vs. customer equipment.
Next Step Idea:
Study more about network troubleshooting methodology. Practice with ipconfig commands and learn how to test connectivity at different network layers.