[Tutorial] Android-Host LocalMultiplayer using PortableWifiHotspot

[nc50lc]

It this fails, you won't be able to enter online gathering hall(1) or you will be alone inside, but with menu(2)

You said there is no menu, I think you entered offline Gathering hall.
Or.... I cant understand your statement completely, can u upload a screenshot.

[have you tried MonsterHunter3rd multiplayer on PSP before?]
If not (I'm just guessing your problem) After your sister acquired a quest 2players or above setting. Go to the BOARD on the left side of the merchant, you can join her quest there. Before starting the quest, you must "ready" status first before letting your sister start it.