hey
i have a big problem
my network about 200 pc
mikrotik 3.30 hotspot
some times my lan ping give me time out
and no internet when i unpluged one of main main cable (( about 40 pc on it )) the ping come back
what is the reson
my config is ok im work with it about 5 years
and i have fake gateway for netcut
what is the reason
thanx

Hello
when ping goes down check your interface traffic.
maybe anyone send big traffic to your router.

some times i found this like in next pic


http://imageshack.us/photo/my-images/844/24625164.gif/

but the ping still reply and ok no time out

time out come suddenly plz help

i checked your send image
i don't see any abnormal thing in that picture...

hey
how there is no abnormal
look to tx and rx in wan and lan again

Hi
i am sorry but i don't know about your problem...
deny icmp packets except echo request and config filter rule for deny ping flood and then check your MikroTik for timeout.

plz tell me how i deny all ping request exept echo (( what echo mean ))
and ping flood how ??

You should do a check that one of your lan pc's is not : route poisioning your lan
The effects you descibe, are similar to an experiance I have had with route poisioning the arp table.

My cause was the mikrotik hotspot was doing the R-Poising by default to stop un-authed devices traversing the lan.

THIS IS MY PROBLEM