Issues with Power Over Ethernet on a specific outlet after power outage

Austin Shaxs

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Mar 24, 2014
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Hello,

I have a bitcoin mining shed built in my backyard. We ran a 100a line to it from the main breaker box and installed a sub breaker box for the shed. The main breaker box has a whole house surge protector. I had a trednet PoE adapter running in the shed just fine. Then we had a power surge/outage.

I am not sure what happened, but we lost all power to the house. At the main breaker box, the surge protector green light was off and the main house breaker was tripped. Anytime I tried to turn the main breaker on, it would auto shutoff because the surge protector was off. After a few minutes the light on the surge protector came back on. Power to the house was restored.

However, the PoE adapter in the shed would lose connected to the network frequently. Pinging a machine on the PoE adapter would produce really high latency and then it would stop all together.

I plugged the PoE into an outside outlet on my house. This restored all networking to the shed (using a long cat5 cable). I tried several PoE adapters and none could maintain a connection to the shed outlet. I turned off the 120v breaker in the shed sub-box and turned off the breaker at the main box to the whole shed. I turned them back on hoping that would fix it but no go.

Now I have the PoE plugged into the side of the house with a long ethernet cable running to the shed. I cannot get a stable connection via the shed outlet now. Any ideas what may be up?
 

dingo07

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you should forget ethernet over powerline and just run a direct burial cat 6 solid core cable 6 inches in the dirt from your house to your shed. Terminate both ends into a 66 punch block and then use cat5e cables to connect the newly run line to your equipment on each end.
that's doing it the right way, and for 100% up-time add a UPS for the equipment on each end
 

Austin Shaxs

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Mar 24, 2014
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Yes sorry, Ethernet over power.

If the surge protector failed, the power would be off completely. It might be damaged though. I have a call into the electrician that installed it.
 

Austin Shaxs

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Mar 24, 2014
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Lol, didnt mean to pick this jsut yet. Was trying to reply.

Yes, this would be the best option. Unfortunately the router for the whole house is in the second story on the opposite of the house so doing a line all the way there would be difficult. The Ethernet over power worked fine until it didnt.

As for a UPS, each miner uses ~420w. There are 28 or so. Thats a big UPS and honestly becomes too cost prohibitive.
 

westom

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Surge protectors do not operate as assumed. If that protector failed, then protector parts are disconnected while the surge remains connected to computers.

As for signal degradation, switch off various circuits by its circuit breaker. Then note a signal strength increase or no change. A 'whole house' protector would also be on one circuit breaker. Suspecting or exonerating the protector as a reason for signal loss would be that easy.

If a surge protector is damaged, then it ws undersized for that venue A minimally size 'whole house' protector is 50,000 amps. It that fails, then a new one should probably be 100,000 amps.
 

Austin Shaxs

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Mar 24, 2014
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Well, I plugged it back in after a day and all is well again. Very very odd. If I have any other issues, the electrician who installed all this said they would come look for free as part of their warranty.