Monster Hunter Freedom Unite (MHFU)

[Miku_Trash]

All day long I've been trying to set up MHFU for multiplayer so that be and my husband can play together, but I just can't figure it out and I'm about at the end of my rope.
When we go online together we can see each others characters in the gathering hall where we can drink, dance, choose quests and just be silly, but when it comes to starting a quest the other persons character immediately drops out of the quest at the beginning of it no matter what we do.
I've tried everything down to server files such as Evolve; but it's just so confusing I don't know how to set it up correctly. We've also tried setting the alternate speed once the quest loads but no luck there either. (Note we don't need evolve to see each other in the gathering hall ppsspp does that by itself)
I've been digging through the internet all day and the only tutorials I can find are 4 year old ones with outdates download files that have been taken down. I've also been trying to find the adhocserver.exe but I can't find it anywhere as any download link for it has been taken down.

Help would be very, very much appreciated; so thanks in advance.