S8 randomly rebooting

Switches
1

Hi all,

I have a S8 POE that is randomly rebooting. I can’t seem to find anything relevant in my syslog. Where can I check to see why this might be happening? It does not happen at a specific time and it usually is a few days apart when it happens.

Thanks.

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Do you by chance have anything stacked on it or anything? I had issues with mine before in the past because I had my router stacked on it and it was overheating, but it works fine after removing it.

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And, what is the temperature reading typically before reboot?

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@dalewhlrr @ebuckland81 Nothing stacked on top or below it. It is in my garage, but it has been way hotter in there in the past without an issue. I saw some commands to get temp sensor output on the CLI, but they are not working. Would love to be able to print temp output to a logfile every 30 seconds or so with a timestamp.

Sitting around 43C after reboot.

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5

@Alta-MikeD @Alta-Matt_v2 they might be able to join your site and help you out.

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It doesn’t appear to be particularly hot, even though it might have dropped somewhat during the reboot. Do you have any readings after a while running?

Edit: All devices, like APs, Route10 and Control HW, except for the Switch(es) respond to the CLI command:
cat /sys/class/thermal/thermal_zone/temp*

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Ah, that’s why that command was not working.

I’m going to keep a closer eye on the temps over the next few days to see if it creeps up.

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8

Just posted this feature request to aid in this kind of possible overheating situations:

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@jeffk931 I can take a look. I’ll DM you the email address to invite to the site.

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Traced to a faulty power outlet. I knew it couldn’t be an Alta issue. :grinning_face:

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11

Glad you could get it sorted out!

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Unfortunately have to revive this thread. One of my S8s is still randomly rebooting (just happened). I swapped the power supplies between my S8s and the issue happens on the same switch, so it’s definitely not the power supply.

I thought the outlet was losing power but I have other devices plugged in there now and they are not losing power.

@Alta-Matt_v2 happy to invite you if you’d like to look

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@jeffk931 yes, please do.

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Will DM you @Alta-Matt_v2

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Looks like both of my S8s are exhibiting the reboots again, even the one that was RMA’d for me back in December. I’ve opened a support ticket for the behavior.