Was the surge suppressor already there when the problem started? Or did
you add the surge suppressor in response to the problem?
IMO, the SS with it's own ground could be a liability as there's the
possibility of a difference in ground potential between that rod and the
equipment at the other end of the cable. If the SS was there from the
beginning, I'd actually try taking it out or bypassing it. If you do
drive a rod for the SS, you're supposed to bond that rod to the house
electric ground.
------ Original Message ------
From: "That One Guy /sarcasm" <[email protected]>
To: "[email protected]" <[email protected]>
Sent: 9/16/2016 4:20:40 PM
Subject: [AFMUG] odd 320 issue, resolved by rain
we have a customer we have battled to keep fuctioning. Theyre on 320
with an air router, DHCP
the router occasionally quits working, we replaced routers twice, and
the whole run of cable, ss, radio, power supply.
we see the MAC on the site router bridge, we see the dhcp discover and
offer in the BMU, but no ACK
finally we get onsite this morning, but it started to rain about 930,
at ten the router came up per the graphs
got on site and logged into the router, eth0 was at 10 full, looking at
the logs it had been flapping down/10full over and over
cycling it brought it back up at 100 full, and no issues.
With the issue resurfacing after replacing the entirety of the run Im
suspecting an issue with the houses electric, bad primary ground in
particular. when it rained, the dirt got more conductive
Our interior run does cross over a copper water pipe, im wondering if
they dont have something grounded to that pipe in the house and when
the conductivity of the primary ground is poor, that pipe becomes
energized as a shunt.
we did add an isolated ground rod to the SS, im hoping what i will see
next time the issue surfaces is a blown port on the router
We told them we wont come back out until an electrician looks over the
homes electrical, they asked what to tell the electrician. Is there
proper terminology that would need to be relayed to the electrician? I
figure they need to verify the overal system ground, the frequency, and
ambient voltage, but I dont know, Im not an electrician
--
If you only see yourself as part of the team but you don't see your
team as part of yourself you have already failed as part of the team.
