RB750GL NAT Configuration Missing

Hardware MikroTik hardware general
1

yesterday, four of hundreds of my RB750GL NAT configuration went missing, i have been checked the logs but none of them can be used as clues, i began investigating of it since yesterday and still can’t find what was the problem.

few days ago before the problem occurs, i added a few dst-nat configurations, but i think it won’t be any problem.

is this hardware problem or i missing something?

regards
Semangka

2

update 15 January 2014 :

now the problem increasing, 8 units of my the RB750GL also have the same issues.
I restore them manually, and they got working normally again, but still have no clue why are they still happening.

my guesses are :
-bugs
-hacks (but i don’t know who was hacking them)