Connecting game consoles w/ shared connection over WLAN

i recently managed to share my internet connection with the wireless network card in my laptop but here’s what’s bothering me
i tried connecting my Wii and nintendo DS to the internet but it wont seem to let them through but when i tried connecting another laptop and pc it worked just fine.
my problem is, because i’m living at a student accomodation dorm i’m not allowed to use routers so if anyone knows a way around this problem i’d really appreciate the help