PROBLEM IN MY NETWORK ..... HAVING SOLUTION ?

Dear all,

I have small network and have number of users … cable and wireless users
but i have problem

( all network stop and the main switch lights on and off )
in this time network not work until i restart the main switch

what solution for this problem ?

i have mikrotik 3.30 and working with subnet mask 16
and i change the main switch also problem on

if this spoofing or what this in my network

???

Don’t double post.

You need to actually post some details. This could be one of any millon things.