So this week my routerboard has been working fine but out of nowhere it drops from the network, i can connect to it from the radio side and I’ll just reboot it and it comes back up. Then I get swamped with other things and forget all about it, well it happened just a few mins ago, logged in, looked at the log and saw this on the first two lines…
dec/31/2001 19:00:02 system,error,critical System rebooted because of kernel failure
dec/31/2001 19:00:03 system,error,critical router rebooted without proper shutdown, probably power outage
Its not the only routerboard that I have up, as a matter of fact the other routerboard is connected to the same power source so its not like I lost power at the site. I’m running XR5’s with Nano’s for customers.
Could you describe the “same power source” in more detail? And how do you get the power to the RB?
I have a setup with two RBs on the same power supply. Both have 16 ga outdoor direct burial wire. One has a 12 foot run, the other has a 200 foot run. When the 12 foot run unit shows 12.8 volts, the 200 foot run RB show 11.9 volts. If you were to take a scientific guess, which would always fail first during a brownout?
my rb’s are being powered via 24volt PoE, each RB has its own PoE, cables Ethernet isn’t longer than 25ft. What i meant by same source is they are plugged into same surge protector.
So I upgraded to 4.2 over the weekend on Saturday night actually, really thought that solved it but today just before lunch I noticed it did it once again. I think this weekend I might just have the PoE injector swapped out, see if that’s it, I did just email support thought with the supout file.
I am using an RB433AH with two XR5’s, I did do a /system health and it was at 22.1 V, of course this was after it had happened, and if I look now its at 22.3. I have about 51 NS5’s connected to these XR5’s, 31 on one radio and 20 on the other.
just as I was finishing this post I looked again and the voltage was at 21.9 V. I have another RB433AH + 1 XR5 at the same tower and that has 39 NS5’s connected to it. It’s voltage has fluctuated between 23.0 V to 23.4 V. I have not seen the error occur on this other RB433AH though or any of the other RB433AH’s I have out in the field which is 8.
If you want to keep track of the voltage in “/log”, here is a script that puts the voltage in the log. Use “/system schedule” to schedule it to run every hour, or as often as you think necessary.
:global voltage [/system health get voltage]
:local emessage ("Voltage is " . [:pick $voltage 0 2] . "." . [:pick $voltage 2 3])
:log info $emessage