hosting problems

[CraftyLizard98]

im having a problem with hosting on the app im on desktop if that matters but the problem is im play monster hunter freedom unite with my friends and i am able to join them no problem and play but im unable to host quests my self we have tried having me enable ad hoc which im pretty sure im suppose to but even after that im still unable to host does anyone know a fix to this problem if so id appreciate the help thank you.