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Hi, there one of my AP550 getting alarm System core dump, sometime rebooted itself. what does it mean?

Hi, there one of my AP550 getting alarm System core dump, sometime rebooted itself. what does it mean?

sophearom_seng
New Contributor
Hi, there one of my AP550 getting alarm System core dump, sometime rebooted itself. what does it mean?
1 ACCEPTED SOLUTION

samantha_lynn
Esteemed Contributor III

Hello, thank you for that tech data. I sent you a detailed overview of what I saw, but just to keep the thread updated as well, here is a brief summary of what I checked and what I found.

 

Checked CPU- All below 1%. I did see a CPU spike in the tech data, but unfortunately the rest of the data doesn't show this, so we didn't collect data during the CPU spike. If you see that system core dump message again, let's grab tech data as soon after that error message as possible.

 

Also there were some power overload warning messages in the buffered log, so we'll want to check in to the power source for these APs.

 

Finally, there was an interference warning in the buffered log and when I checked your wifi0 and wifi1 counters we found that we had a 60-90% CRC rate, which is very heavy interference. We'll want to get that reduced as much as possible so we can be sure to get your wireless signal through reliably.

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8 REPLIES 8

sophearom_seng
New Contributor
Dear Sam,
I wondering wifi1: Power 20 exceeds - we use PoE+ switching PD max.30W. and I have a photo in my working environment as attached.

Best Regards,
Sophearom

samantha_lynn
Esteemed Contributor III

Hello, thank you for that tech data. I sent you a detailed overview of what I saw, but just to keep the thread updated as well, here is a brief summary of what I checked and what I found.

 

Checked CPU- All below 1%. I did see a CPU spike in the tech data, but unfortunately the rest of the data doesn't show this, so we didn't collect data during the CPU spike. If you see that system core dump message again, let's grab tech data as soon after that error message as possible.

 

Also there were some power overload warning messages in the buffered log, so we'll want to check in to the power source for these APs.

 

Finally, there was an interference warning in the buffered log and when I checked your wifi0 and wifi1 counters we found that we had a 60-90% CRC rate, which is very heavy interference. We'll want to get that reduced as much as possible so we can be sure to get your wireless signal through reliably.

sophearom_seng
New Contributor
Dear Sam,
Here the capture date from my 2 devices as attached file.

Best Regards,
Sophearom

samantha_lynn
Esteemed Contributor III

I'd want to get a look at the tech data to start troubleshooting this for you. Could you send tech data from an AP that has this alarm (preferably tech data pull just after one of these alarms registers for that AP) to me directly at communityhelp@aerohive.com? You can get tech data by going to Tools> Utilities> Get tech data> Check the box next to the AP> Get tech data (at the top of the page this time).

GTM-P2G8KFN