I have an AP9631 that seems to "Network Interface restarted" every couple days or so. I have upgraded the firmware to v.6.4.6 , but this has not solved the issue. I looked through the logs files but dont see anything helps narrow down where the problem is.
I am attaching the sanitized files if anyone could help narrow down the issue.
There's a watchdog timer built into the AP9631 platform. If the network is quiet enough, it might sense the lack of traffic as a problem and restart the management card. There is also a ping test that takes place from time to time and a failure there could also restart the card.
It looks like a known issue with that firmware -- you could try reducing notifications ie removing SNMP trap receivers and email recipients.
Will there be a possibility to disable this watchdog and/or ping feature in the future?
I tried to disable all unecessary services: ftp, snmp but I still get the network card restart and it takes up to 4 minutes
It is especially annoying for me because I use the APC7920B in automated tests which then fail because I cannot connect to the device when the interface is restarting.
If you request a "Technical Support Debug Information Download" from the About / Support web page on your device, you'll get a .tar.gz file which contains a number of useful things. I don't remember which file it is (maybe the debug one), but one of them has a code identifying the cause of the watchdog reset. One of the APC folks can probably look that up for you and tell you why your card is resetting.
@APC I could reproduce the behavior again and got a core dump where should I send the snapshot?
09/07/2018 10:17:26 Failsafe Reset
Specific code = 200
AOS v6.5.6 rpdu2 v6.5.6
Serial Number: 5A1750E04651
AOS Binary Date/Time: Mar 30 2018 16:51:08
APP Binary Date/Time: Apr 24 2018 11:42:41
Task Dump Task ID 166
Data in RAM is incomplete - dump aborted!
09/12/2018 21:53:37 System Network Interface restarted. 0x0002 (occurs multiple times)
09/12/2018 21:20:27 Requested Reset 09/12/2018 21:53:38 Failsafe Reset 09/12/2018 22:49:52 Failsafe Reset...09/07/2018 09:18:33 .\os\os_heap.c:191 check_heap: block size mismatch.
09/07/2018 09:18:40 Software Exception Reset
Less than 100 bytes in stack, task 220
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