adhoc LAN pc - Yugioh 5d's tagforce 5

[ThunerzII]

Guys am new to PPSSPP's adhoc setups.

I'm trying to setup LAN for yugioh tagforce 5.
My friends will join with another PC.

Do we still need HAMACHI for the PPSSPP 1.0.1?

I tried without hamachi and just put 192.168.1.1(including the other PC ) in PPSSPP's networking settings. Enabled WLan Beta adhoc and Pro adhoc.

Setup firewall and already enabled UpnP setting.

Tried out but we couldnt see each other in lobby.

Am not really familiar with networking. Need help. Thnx in advance