I’m going to upgrade to 5.9 and upgrade the routerboard’s firmware as well.. Hopefully this will resolve the problem. Just wanted to check to see if any others were experiencing similar issues and found a resolution.
I’ll be opening a support ticket with Mikrotik shortly.
The board is fairly new and has been in service for about 3 months. I can’t tell when the problem first happened as the routerboard reboots before the monitoring software can poll the device and detect a problem.
Uldis - I’m using a Passive POE with a solar setup.
48VDC system
8 x 6VDC AGM 150Ahr Batteries
8 x 175Watt 12 VDC Panels (2 x 48VDC arrays in parallel)
Charge controller
Not sure on amperage, its just drawing whatever is needed. There’s more than enough power at this site its completely overkill as it was designed for a much larger scale setup. The ethernet run is about 50-60’ total.
I have two other RB800 boards, three total, at this site and this one with the R52Hn cards is the only one exhibiting the symptoms.
As you suggested I’ll be replacing the R52Hn cards with another brand, either the F52N-Pro’s from UBII or SR71-15 from Ubiquiti. I have my technicians scheduled to do the swap this Friday.
was this problem solved? I’m asking because i have the same. The current-firmware-version (bios) won’t be displayed and the router reboots many times with exactly the same message “kernel failure”. I have currently version 5.5 running on the board. The board is connected to 24POW. Do i need to install a 48V power-supply? Is this recommended?
I've updated the bios to 2.30 and the RouterOS to 5.11. The Board now runs a works a little longer, but do also a "System reboot because of kernel failure".
And in the Routerboard there is again no current-firmware visible.
Hello, i need help. i have RB1100AH x2, and i use for router bgp and qos. on first day, the router working good, and uptime 28 hours. suddenly, my router reboot and the logging show : system rebooted because of kernel failure. i bought a new for the router. this is my router health and my routerboard status :
I was RB435G AP/bridge1/TX=10dBm <------> station bridge 1 RB433
AP/bridge2/TX=10dBm <------> station bridge 2 RB433
All wersion Router OS 5.20 and 6 time per hour disconnect.
Was change all to 5.25 and no dissconect. Uptime 2days
Version Router OS 5.20 was BAD.
Good luck.
