F5F Stay Refreshed Power Users Networks Did a power spike cause the internet to stop working from that wall outlet?

Did a power spike cause the internet to stop working from that wall outlet?

Did a power spike cause the internet to stop working from that wall outlet?

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Nero12321
Posting Freak
858
07-16-2026, 11:20 PM
#1
We got a big power spike yesterday. My PC was plugged into the wall with an ethernet wire, so when power came back on, that port stopped working. I checked my router and saw it still had Wi-Fi. If I just plugged the ethernet cable into the router itself instead of directly to the wall, it worked again. I tried other ports in different rooms but they didn't work either. Even after buying a new ethernet cable to test it, nothing fixed it. I looked online for anyone who had the same issue but couldn't find a fix. Any tips or advice would be super helpful.
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Nero12321
07-16-2026, 11:20 PM #1

We got a big power spike yesterday. My PC was plugged into the wall with an ethernet wire, so when power came back on, that port stopped working. I checked my router and saw it still had Wi-Fi. If I just plugged the ethernet cable into the router itself instead of directly to the wall, it worked again. I tried other ports in different rooms but they didn't work either. Even after buying a new ethernet cable to test it, nothing fixed it. I looked online for anyone who had the same issue but couldn't find a fix. Any tips or advice would be super helpful.

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AwsomeFace2
Member
202
07-17-2026, 02:32 AM
#2
Anything can happen! When running cables inside walls, the best thing is to use a cheap little tool called a cable tester at Amazon (link provided). This simple device lets you check if your wire goes where you think it does, and makes sure all 8 wires are connected properly.
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AwsomeFace2
07-17-2026, 02:32 AM #2

Anything can happen! When running cables inside walls, the best thing is to use a cheap little tool called a cable tester at Amazon (link provided). This simple device lets you check if your wire goes where you think it does, and makes sure all 8 wires are connected properly.

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SlieFie333
Junior Member
49
07-17-2026, 04:23 AM
#3
Something feels wrong. You plug an ethernet cable from your router into a wall [one port] and the cable sends data out to many devices in other rooms, but none of them work. This sounds like you might have a switch somewhere else that needs checking, or maybe a smart panel trip is causing power issues so everything is off?
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SlieFie333
07-17-2026, 04:23 AM #3

Something feels wrong. You plug an ethernet cable from your router into a wall [one port] and the cable sends data out to many devices in other rooms, but none of them work. This sounds like you might have a switch somewhere else that needs checking, or maybe a smart panel trip is causing power issues so everything is off?

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Jomppaboy
Member
192
07-22-2026, 07:56 PM
#4
Yeah im going to have to agree with @Wacabletech06 with the info we got, there's a switch somewhere if you only have 1 cable from the router to the wall and multiple Ethernet locations, gonna have to find it, see if it needs a reboot or replaced.
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Jomppaboy
07-22-2026, 07:56 PM #4

Yeah im going to have to agree with @Wacabletech06 with the info we got, there's a switch somewhere if you only have 1 cable from the router to the wall and multiple Ethernet locations, gonna have to find it, see if it needs a reboot or replaced.

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viceGG
Junior Member
10
07-25-2026, 10:56 AM
#5
I'd say yes if someone clearly said all those ports worked. It was really vague at best. Just having holes is not the same as having holes that actually work, and nobody ever made that clear.
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viceGG
07-25-2026, 10:56 AM #5

I'd say yes if someone clearly said all those ports worked. It was really vague at best. Just having holes is not the same as having holes that actually work, and nobody ever made that clear.

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YushoSensei
Junior Member
9
08-06-2026, 07:36 PM
#6
I found another PC connected to a wall socket in a different room and it worked before something broke. I was talking to my wife about this, and she said she wasn't sure if it was too much power or if the outlet had been pulled out. She turned off the switch on the breaker box because all the electricity on our second floor went away. When she flipped it back everything looked normal again except for the Ethernet ports on the walls that no longer worked.
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YushoSensei
08-06-2026, 07:36 PM #6

I found another PC connected to a wall socket in a different room and it worked before something broke. I was talking to my wife about this, and she said she wasn't sure if it was too much power or if the outlet had been pulled out. She turned off the switch on the breaker box because all the electricity on our second floor went away. When she flipped it back everything looked normal again except for the Ethernet ports on the walls that no longer worked.

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Tavado
Senior Member
505
08-08-2026, 04:17 PM
#7
It feels exactly like a network switch stopped working, or maybe it just got broken. You should look for where those wires inside your walls lead elsewhere.
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Tavado
08-08-2026, 04:17 PM #7

It feels exactly like a network switch stopped working, or maybe it just got broken. You should look for where those wires inside your walls lead elsewhere.

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Kay_Awz
Junior Member
25
08-08-2026, 06:05 PM
#8
That's why I made a specific point about the information we have.
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Kay_Awz
08-08-2026, 06:05 PM #8

That's why I made a specific point about the information we have.