Something doesn't let the autopunch properly sometimes, and I don't know what it can be.

[ArielixCARP]

Hello. I have a little question about Autopunch and how it works in Touhou Hisoutensoku.
I can perfectly use it, but only with an specific friend (and only when he hosts), but when I tried to play with other guy, it didn't work. We both tried to host the game, but nothing happened. My question... is there some kind of configuration that can block the program and don't let some devices to host or even join to a game?
Here's the inject.log of my failed try with my friend.
If you could help me, I'll really appreciate it. Thanks for reading and sorry for my basic English.
inject.1010.log

[weri-games]

@ArielixCARP
I encountered the same error, and fixed it

my_recvfrom@294: mapping port mismatch: received_from=53830 for 190.14.158.53:11990
my_recvfrom@297: matched mapping, injecting internal_port=53830 for 190.14.158.53:53830

Try to check your router's setting
Maybe you have some transfer settings, about port:11990
After delete it, you can punch!