Zyxel NSA310 on PoE

DC input socket has 12V 2.5A specification.

It runs correctly on PoE adapter (unspliters :). Switch shows only around 13W consumption (in ideal conditions it means 1,08A at 12V)

Sometimes, after few days NSA310 stops responding with:

It was tested under heavy load without any problems, so it is strange. but it can be related also to latest kernel 5.8 update.

As workaround software watchdog was used. I noticed that system is running when issue happens. Only networking connectivity is broken.

ping			= 192.168.0.1
interface		= eth0
watchdog-device	= /dev/watchdog

# lsmod
orion_wdt              16384  1
 
# dmesg | grep wdt
[   14.045905] orion_wdt: Initial timeout 21 sec

Now testing adapter:

Uptime 21days, so issue was related to used PoE injector.