Monster Hunter Freedom Unite (MHFU)

[vnctdj]

But, are you sure you have to port-forward it on every PC? It seems unlikely since it's usually never the case.

From what I remember, each player have to port forward...

Also, I've been getting other issues. My PPSSPP.ini keeps resetting itself to its previous settings, forcing me to make it read-only. Whenever I have to edit it I have to take the read-only off, edit it and put read-only back on.

That's strange...
Have you tried to edit the IP address and MAC address in PPSSPP options ? The latest builds available here allow that

Playing on my LAN also seemed to not work when Hamachi did. On LAN the host would see no one, and the others would see their name twice when someone else is already in the gathering hall. Pretty annoying.

Very strange too...
When you play locally, each player have to use the IP of the person who host the ad-hoc server and have a different MAC address from the others, that's all
I personally don't have any problem with that