Dragon Ball Z tenkaichi Tag team, Metal Gear Solid Peace Walker ( Android)

[Pipe Plazas]

Because in these two games when my partner is going to join the game joins but it leaves immediately ... The problem is the port number, the psp model or something else? Finally help me

[Pickles]

Are you using a VPN like Hamachi?

[Areep99]

how too play

[Rampage]

I tried to play dbzttt on local wifi everything was fine,server was created game mode was selected and the game even starts but only for few seconds after that there is a message displayed "connection is lost" this happens every time i tried play multiplayer btw i used android.
If someone knows how to make this work plz reply.