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Cox modem fried by coax?
On modem #3 in the past 3 months...
First modem displayed no lights. No internet. Tried the usual troubleshooting, turning it off and on, etc. Replaced modem, did not fix problem. No lights coming on, no internet.
Tech came out and replaced the modem again, but this time plugged into a different coax outlet inside. Was out there several hours and now it works.
A few weeks later, here we are with the same issue, no lights displayed on the modem.
The power supply is a steady 12VDC, plugged into a surge protector. The circuit is not overloaded.
I found there is AC voltage coming from the coax outlet inside, about 40-70VAC. I went outside to check the ground on the coax, indeed the ground is working.
I'm assuming there is voltage leaking into the coax from the shielding being damaged, and it being next to house electrical underground.
Help.
ExtraChrispy
Contributor III
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If I were you, I'd start looking for a faulty ground or neutral connection in your home wiring. While not the only possible explanation, it would be the most likely problem to be occurring. You would find stray voltage on the coax if it is indeed acting as the only viable path to ground for electrical devices.
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StephanieS
Moderator
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holmbergfamily2 please reach out to us via email at cox.help@cox.com, we can help! In the meantime, you may want to see if the issue is resolved by plugging the power cord directly into an electrical outlet VS using a power strip.
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