You cannot receive every Pokemon without Street Pass. Namely you get one form of each of the multiform Pokemon (e.g. Deerling) and one of the elemental monkeys. You need StreetPass to get the others.
Also I think you only get the legendaries via AR markers, not as a random daily Pokemon. Try scanning a few AR marker from here that you don't have and see if you get that Pokemon the next day.
And of course, don't forget to turn your wi-fi on and put the 3DS to sleep for a few minutes ;)