Networks

what error messages are you getting?

The following should work:
1) Log into the ASA5505 command line

2) Type:
enable (enter),
3 then your password (enter)

4) Type:
config t

4) Type:
no dhcpd enable inside

test your computers to ensure that dhcp is now disabled. If everything is fine then type write m to save changes. Otherwise you can reboot the cisco and it will revert back to your last change.