RB 433ah reboots too many times at night

moody2030 · Sun Sep 23, 2012 5:34 am

i have rb 433ah it works from 1 2010 properly
but i noticed that it started rebooting every 2 or 3 minutes about 2 weeks, but a few days ago it restarts every 10 or 20 seconds, an it become very hard to use internet
i have reset it and re configure it several times but still reboots
what can i do
some times it still work till i connect to it then it reboots immediately

Time Graph image in inSSIDer attached
the green one is RB
sorry about language

rb.png

JimBouse · Sun Sep 23, 2012 3:25 pm

Do you have a power problem?

moody2030 · Mon Sep 24, 2012 3:56 am

Do you have a power problem?

I dont know how to check if it power problem or something else,
but i fount out that the routerboard still running till i start downloading or when many ap s connect
i mean transferring big quantities of data

Mon Sep 24, 2012 12:46 pm

Can you do a visual inspection of the board and check if there are any visual problems? Check if the capacitors look ok, and if they are not inflated, leaked etc.

janisk · Mon Sep 24, 2012 2:35 pm

also, if possible, check using multimeter what is supplied voltage at board by the PSU.

karina · Tue Sep 25, 2012 3:25 am

put my money on the caps

SurferTim · Tue Sep 25, 2012 5:07 am

Only at night? My money is on the power supply. I would guess 24v unregulated.
What does the log say after the reboots?

mjoksimovic · Fri May 10, 2013 10:51 am

RB433AH reboots constantly, not possible to boot at all with or without radios. Worked perfectly until last night. Power supply OK. Any advice?

Fri May 10, 2013 10:54 am

connect serial cable and see what it says. if there will be a kernel panic, you will see it. if not, maybe power failure?

karina · Fri May 10, 2013 11:14 am

still put my money on the Caps, look for small green and gold caps with raised or swollen tops

SurferTim · Fri May 10, 2013 1:56 pm

RB433AH reboots constantly, not possible to boot at all with or without radios. Worked perfectly until last night. Power supply OK. Any advice?

Only fails at night? Works good during the day? What power supply are you using? Voltage/current rating would help, and whether it is regulated or unregulated.

If it is a RB433AH, it has a voltage readout in "/system health". What does that say?

edit: The voltage report below is from last night. This is a RB433AH powered by a 12v 1A unregulated power supply. Note what happens to the supply voltage starting about 21:00 until about 05:00. If this was a 24v unregulated supply, the voltages would be twice this. What is the max supply voltage for a RB433AH before it starts rebooting due to overvoltage?

Daily voltage report for test on may/09/2013

23:00 = 15.5 Line voltage = 131
22:00 = 15.5 Line voltage = 131
21:00 = 15.4 Line voltage = 130
20:00 = 15.3 Line voltage = 130
19:00 = 14.8 Line voltage = 125
18:00 = 14.6 Line voltage = 124
17:00 = 14.7 Line voltage = 124
16:00 = 14.8 Line voltage = 125
15:00 = 14.9 Line voltage = 126
14:00 = 15.2 Line voltage = 129
13:00 = 15.0 Line voltage = 127
12:00 = 14.8 Line voltage = 125
11:00 = 15.2 Line voltage = 129
10:00 = 15.2 Line voltage = 129
09:00 = 15.0 Line voltage = 127
08:00 = 15.2 Line voltage = 129
07:00 = 15.4 Line voltage = 130
06:00 = 15.5 Line voltage = 131
05:00 = 15.8 Line voltage = 134
04:00 = 15.8 Line voltage = 134
03:00 = 15.9 Line voltage = 135
02:00 = 15.9 Line voltage = 135
01:00 = 15.8 Line voltage = 134
00:00 = 15.9 Line voltage = 135

Since voltmonitor started on 13:00:10 apr/24/2013
Maximum = 16.0v at 01:00:10 may/06/2013
Minimum = 14.5v at 14:00:10 apr/26/2013

lunchboxrts · Sun May 12, 2013 4:40 am

still put my money on the Caps, look for small green and gold caps with raised or swollen tops

+1

SurferTim · Sun May 12, 2013 1:45 pm

still put my money on the Caps, look for small green and gold caps with raised or swollen tops

Also, look for the brand name "Vampire" and the "Made in Transylvania" on those caps.