Phantasy Star Portable 2

[EmmMosaq]

Hello to everyone who reads these message. Well, I have been playing this game for about two weeks and story mode works just fine, almost excellent and i hadn´t tried to play multi-mode until I downloaded the Japanese DLC missions but when I tried to enter multi-mode SOLO it wont let me in, a message saying "a network error has occurred" pops. I have tried a LOT of things and it still won´t work so if anyone who had this problem and was able to fix it and has a solution or any help or advide would be greatly appreciated.