So this one time my house got struck by lightning. It caused over 10k in damages including some of the equipment in my homelab.
The lightning traveled through the coax on the modem (some how unaffected), into my opnsense, destroyed the pcie NIC, on both WAN and LAN side, managed to travel through my POE switch and killed every non-POE device, including my main workstations motherboard. The switch was still alive but POE function wasn’t working. After I replaced it, strangely none of the POE devices were affected and were working fine.
Since then, my coax has ground protections, two of them.
Pic of the ethernet cable that was connected from the modem to opnsense wan port
So this one time my house got struck by lightning. It caused over 10k in damages including some of the equipment in my homelab.
The lightning traveled through the coax on the modem (some how unaffected), into my opnsense, destroyed the pcie NIC, on both WAN and LAN side, managed to travel through my POE switch and killed every non-POE device, including my main workstations motherboard. The switch was still alive but POE function wasn’t working. After I replaced it, strangely none of the POE devices were affected and were working fine.
Since then, my coax has ground protections, two of them.
Pic of the ethernet cable that was connected from the modem to opnsense wan port