Internet connection

Hi all,

I have two computers connected with two IP's 192.168.0.1 and
192.168.0.2 with a 255.255.255.0 sub mask. I can share files and the
printer but when I try to share my internet connection it doesn't
work. To share my internet (that works) I must change the DHCP to
dynamic on both computers and lose my file share of my network drives.

I already have disable the firewalls and anti-virus.

Can anyone help me

Tanks in advance
Jorge