[Ticket#2011091966000037] Problem
Same thing here.
RB1200
/sys routerb print
routerboard: yes
model: 1200
serial-number: 2CD4011D2FFF
current-firmware: 2.33
upgrade-firmware: 2.33
/system resource print
uptime: 33m15s
version: 5.7
free-memory: 487256KiB
total-memory: 516560KiB
cpu: 460GT
cpu-count: 1
cpu-frequency: 999MHz
cpu-load: 39%
free-hdd-space: 30564KiB
total-hdd-space: 61440KiB
write-sect-since-reboot: 612
write-sect-total: 385499
bad-blocks: 0%
architecture-name: powerpc
board-name: RB1200
platform: MikroTik
Router reboots regularly few times a day.
every two days (approx) router gets frozen, all ethernet ports get in down state. Watchdog does not help. Router must be power cycled to recover .
It all started when CPU usage got on more than 50%
Bigger CPU usage is, more often router reboots or gets frozen.
High UDP traffic over IPSec tunnel caused the 1200 to reboot, that was “fixed” on 5.7, however we still had the problem after the 5.7 update. We found that upgrading the firmware fixed this problem.
You do this under system - routerboard
Good luck.
model: 1200
version: 5.8
current-firmware: 2.37
uptime: 58m16s
cpu-load: 84%
Upgrade does not help regarding reboot issue.
Router still reboots and frequency of reboots depends directly of CPU usage.
Any news about this problem?
i got same problem running RoS 5.8 on RB1200.
But can’t notice that cpu will go up before reboot.
I can confirm same issue since our rb1200 is getting big traffic and its cpu is over 80% all the time.
model: 1200
version: 5.8
current-firmware: 2.37
We saw the bug (reboots) with 5.6, and we experienced the same issue on 5.7 and now with 5.8, so the bug still is there.
Maybe mangle rules?
I don’t think it’s mangle problem.
I only have filter rules (input and forward) and conntract disabled.
Also i have 1 dhcp-relay and 2 vlan interfaces.
And thats all. Router was running with this configuration some weeks without any problems.
But now when it’s getting 20-100Mbit/s traffic, problems begin.
I never saw cpu usage higger that 25%.
Then we can rule out more things:
We have no dhcp-relay or vlans, but we also have filter rules (may be we can try to disable it for a period and see if reboots disappears, we will report …).
So, seemingly the problem is not mangle rules, dhcp-relays, vlans, … and another big thing in play is the queue trees for QoS …
I can confirm that without filter rules it still reboots 
Hi all, a question regarding this issue…
Background: in Argentina the rb1200 is delivered with with v5.2 & firmware 2.33.
Question: Is there any reason to keep it in 5.2 and do NOT be updated to 5.8?
Thanks in advance,
manuel.
It looks problem is only with traffic and board itself.
We have this particular problem only with RB1200.
Marking packets in bridge/firewall and running queue-tree
I have tested all ROS versions up to 5.8 and FW up to 2.37.
ALL ROS versions are affected.
ALL FW versions are affected.
With traffic bigger than 20mbps router reboots.
more traffic == more reboots
Hello. Try downgrade frekvency to 667Mhz if it helps.
Hi All,
Is this problem Fixed. need to know as about to deploy 6 RB1200s in critical Locations. Be well unhappy if just blown a grand on duff gear.
ZDIV wrote 23.November - latest firmware and still reboot
Hi,
Can anybody at Mikrotik add to this please. I need confirmation if this a general issue on the RB1200 or just isolated cases
Karina,
It is a problem in RB. The staff of the Mikrotik does not respond to calls no more related to this problem, I recommend you buy the RB1100, Ticket 2011112566000593
Does not sound good.
And also noticed 5.8 is no longer available on the download site. MK what is happening?
it’s available as always, what’s the problem?
I only see 5.7 as latest listed on the site ??
sorry, a small side-effect of web server upgrade. it will be back in a short while