F5F Stay Refreshed Hardware Desktop Lightning struck my ISP coax and damaged my modem, router, and PC. It blew up the power supply unit.

Lightning struck my ISP coax and damaged my modem, router, and PC. It blew up the power supply unit.

Lightning struck my ISP coax and damaged my modem, router, and PC. It blew up the power supply unit.

6
666Cobra666
Member
161
01-27-2016, 04:28 PM
#1
Today was a pleasant storm. I decided to unplug my computer from the wall, as power spikes aren’t rare here. While I was resting, listening to the rain, I was suddenly jolted awake by what sounded like a gunshot. I asked my Google assistant to switch the lights on, but it refused. I checked the router and modem—both were completely dead. Odd. I tried restarting, but nothing changed. I inspected the breaker upstairs and confirmed it was fine. Going back down, I rechecked and still found them dead. On the ethernet cords, there were scorch marks. I followed the cables to the back of the PC and saw similar damage. After plugging it back in, there was no sign of life—no lights, no response from the system. Everything seems to have been ruined. Since the power supply failed, I suspect all connected devices were damaged too. Now I’m wondering how to avoid this next time. Hopefully, I’ll have internet again soon. If anyone has any advice on preventing this, I’d really appreciate it. Fortunately, I have a four-year protection plan for the modem and router. My PC story is different—probably not back until next year, if it comes back at all. My car broke last week, so I’ll have to bear the repair costs, possibly hundreds or more, depending on whether it’s even fixable. A new PC isn’t an option anytime soon.
6
666Cobra666
01-27-2016, 04:28 PM #1

Today was a pleasant storm. I decided to unplug my computer from the wall, as power spikes aren’t rare here. While I was resting, listening to the rain, I was suddenly jolted awake by what sounded like a gunshot. I asked my Google assistant to switch the lights on, but it refused. I checked the router and modem—both were completely dead. Odd. I tried restarting, but nothing changed. I inspected the breaker upstairs and confirmed it was fine. Going back down, I rechecked and still found them dead. On the ethernet cords, there were scorch marks. I followed the cables to the back of the PC and saw similar damage. After plugging it back in, there was no sign of life—no lights, no response from the system. Everything seems to have been ruined. Since the power supply failed, I suspect all connected devices were damaged too. Now I’m wondering how to avoid this next time. Hopefully, I’ll have internet again soon. If anyone has any advice on preventing this, I’d really appreciate it. Fortunately, I have a four-year protection plan for the modem and router. My PC story is different—probably not back until next year, if it comes back at all. My car broke last week, so I’ll have to bear the repair costs, possibly hundreds or more, depending on whether it’s even fixable. A new PC isn’t an option anytime soon.

M
MegaDisco
Senior Member
352
01-29-2016, 02:13 AM
#2
It seems the PSU didn't completely fail; likely just a few caps on the motherboard broke. There are Ethernet surge protectors available—maybe one of those would help.
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MegaDisco
01-29-2016, 02:13 AM #2

It seems the PSU didn't completely fail; likely just a few caps on the motherboard broke. There are Ethernet surge protectors available—maybe one of those would help.

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pafrickstump
Member
62
01-29-2016, 02:41 AM
#3
I hoped it might be true but there are many components in my build that relied on the PSU, such as the RGB fans. Since they aren't working, I suspect the power supply is the issue. I can't test it myself because I don’t have other PCs or friends nearby to assist. I haven’t heard of an Ethernet surge protector, so I might need to purchase one. Even with it, I’d still have to replace the modem. I searched for a coax surge protector but found only low-priced options that look like simple connectors, making me hesitant about their quality.
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pafrickstump
01-29-2016, 02:41 AM #3

I hoped it might be true but there are many components in my build that relied on the PSU, such as the RGB fans. Since they aren't working, I suspect the power supply is the issue. I can't test it myself because I don’t have other PCs or friends nearby to assist. I haven’t heard of an Ethernet surge protector, so I might need to purchase one. Even with it, I’d still have to replace the modem. I searched for a coax surge protector but found only low-priced options that look like simple connectors, making me hesitant about their quality.

C
castielqueen
Member
228
01-29-2016, 03:28 AM
#4
The UPS includes an Ethernet surge protector from CyberPower Systems.
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castielqueen
01-29-2016, 03:28 AM #4

The UPS includes an Ethernet surge protector from CyberPower Systems.

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believe76534
Junior Member
13
01-29-2016, 05:01 AM
#5
It occurred near 3:40, and when I reached out at 4 they were already closed. I had to talk to a tech support representative through the online chat. The guy didn’t know anything about fixing the equipment, but he arranged for a technician to inspect the lines, just in case. I plan to try again tomorrow and see if I can get through. I’m hoping they’ll assist me and that my HDDs are okay. I’ve been working on music to cope with my dad’s passing in May, and if that’s all lost I’ll be really upset.
B
believe76534
01-29-2016, 05:01 AM #5

It occurred near 3:40, and when I reached out at 4 they were already closed. I had to talk to a tech support representative through the online chat. The guy didn’t know anything about fixing the equipment, but he arranged for a technician to inspect the lines, just in case. I plan to try again tomorrow and see if I can get through. I’m hoping they’ll assist me and that my HDDs are okay. I’ve been working on music to cope with my dad’s passing in May, and if that’s all lost I’ll be really upset.

S
spiderman53003
Junior Member
3
01-29-2016, 06:21 AM
#6
There are numerous surge protectors with phone, Ethernet, and coaxial protection built-in. Choose a good one if you can't spend on an upgrade.
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spiderman53003
01-29-2016, 06:21 AM #6

There are numerous surge protectors with phone, Ethernet, and coaxial protection built-in. Choose a good one if you can't spend on an upgrade.

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Flundi
Member
231
01-29-2016, 11:18 AM
#7
The Coax should be connected to ground outside, matching the ground used by the utility company. They also offer Coax surge protectors (https://www.amazon.com/VCE-Satellite-Lig...188&sr=8-4) In short, it will attach to the line near where your ISP network meets yours. If lightning strikes it, it will break and stop current flow. I haven’t tested one myself, but they’re available. I strongly advise against using standard surge protectors on your internet line—they might disrupt the signal and affect your connection.
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Flundi
01-29-2016, 11:18 AM #7

The Coax should be connected to ground outside, matching the ground used by the utility company. They also offer Coax surge protectors (https://www.amazon.com/VCE-Satellite-Lig...188&sr=8-4) In short, it will attach to the line near where your ISP network meets yours. If lightning strikes it, it will break and stop current flow. I haven’t tested one myself, but they’re available. I strongly advise against using standard surge protectors on your internet line—they might disrupt the signal and affect your connection.

C
C_M
Junior Member
31
01-29-2016, 07:54 PM
#8
I’m an electrical engineer by trade. The most viable choice seems to be eliminating coax entirely. I did so and was extremely satisfied. Alternatives include fiber or cellular networks—though satellite isn’t ideal if you want to avoid surges. I opted for cellular. If coax remains a must, use this specific surge protector: https://soundapproach.com/transient-prot...ction.html and connect it to your electrical panel ground. Don’t establish another grounding point. If you’re uncertain, contact the manufacturer—they’ll advise properly. For a reliable surge protector for your lines, consider this model: https://www.ametekesp.com/surgex/standal...e-120-208v. Good luck, and sorry this occurred.
C
C_M
01-29-2016, 07:54 PM #8

I’m an electrical engineer by trade. The most viable choice seems to be eliminating coax entirely. I did so and was extremely satisfied. Alternatives include fiber or cellular networks—though satellite isn’t ideal if you want to avoid surges. I opted for cellular. If coax remains a must, use this specific surge protector: https://soundapproach.com/transient-prot...ction.html and connect it to your electrical panel ground. Don’t establish another grounding point. If you’re uncertain, contact the manufacturer—they’ll advise properly. For a reliable surge protector for your lines, consider this model: https://www.ametekesp.com/surgex/standal...e-120-208v. Good luck, and sorry this occurred.