Hallo Javier,

have you carefully read datasheet? INT0# or INT1# must be kept low for at least 10msec. That's the time required for the oscillator to start up again. So, only some AND gate will not be enough, you need some monoflop, too, guaranteeing that INT0# pin is keept low for a minimum of 10msec.
And, don't forget to program INT0 input as being level sensitive.

Bye,
Kai