looks like a bash script to ping & reboot when necessary may fix it https://wp.josh.com/2018/06/04/a-software-only-solution-to-the-vexing-beagle-bone-black-phy-issue/

On Sun, Mar 14, 2021 at 7:36 PM Jake <jake@spaz.org> wrote:
[ removing omni-discuss and adding access control list in addition to two other
"admin" lists i didn't know about ]

this is something that has happened before.  Something about the beaglebone
periodically randomly disables the ethernet port until it gets restarted.  We
have never logged into the beaglebone (through its TTL serial port console for
example) in order to diagnose why, we just power cycle it and it comes back up.

would be interesting to save logs to a microSD card (we keep the built-in eMMC
in read-only mode most of the time to prevent wear) so that we could get a clue
as to what's happeneing.  Or perhaps make a process to watch for the ethernet
port being powered down and restart it if that happens for whatever reason.


On Sun, 14 Mar 2021, robb wrote:

> the beaglebone (BB) & switch to BB were sending (green lights on eth ports)
> but the BB wasn't receiving (orange light...) so i rebooted the BB & it's
> pinging now
> On Sun, Mar 14, 2021 at 6:51 PM Yardena Cohen <yardenack@gmail.com> wrote:
>> Did something happen to the omni door computer? I can't reach it over
>> the network, even from within the building. It appears to be working,
>> letting people in. I tried looking at the box, but couldn't make sense
>> of the mess of cables. Maybe an ethernet got disconnected somewhere?
>> The rest of the network is fine. Other devices on that subnet and that
>> interface are reachable, but:
>> $ ip neigh | grep
>> dev enp3s2  FAILED
>> _______________________________________________
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>> discuss@lists.omnicommons.org
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