Dragon Ball Z Tenkaichi Tag Team

[Rampage]

Port offset is already at 5000 and fast memory is off it's still of no use multiplayer only work for 1-2min after that the msg is displayed that the connection is lost and after that when i make multiplayer lobby again it gets stuck at lobby showing STARTING msg then i have to close the game and start it again but still multiplayer works only for 1-2min then again connection is lost and after that i get stuck in lobby.I think that it doesnt work for andtroid at all.plz if someone know the solution plz help me i really want to play this game with my friends.

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This is the screenshot of msg displayed in mid of my multiplayer.