phantasy star zero

there is an problem iam playing in clean bahamut's version
in the wifi i can play with random peoples but when i try play with friend that i gived him friend code and he gived me he try join and gets Error: 86420
i try join him and same error
is there a solution?

 

Bahumut's version can only connect with other bahumut versions... If you want to play with people who bought the game or with people running other clients, your going to have to get the xenophobe version and get the crack/patch for it. I had to look for it at another website, but google should serve you well.

 

This is not true according to people in the other thread, who have said they have had Bahamut, Xeno, and Retail all playing in the same game.

It's likely an issue with the flashcart that is causing it. You can try the other version if you wish, but it's not likely the issue.

This thread:
https://www.romulation.org/forum/index.php?topic=27311.0

 

its not the problem.. any version will work with any version
i searched a bit about this error and nintendo saying the problem is with the router's firewall that blocking incoming/outcoming IP
that make sense but i dont know how to fix the problem so i can play with friends in ps0..
anyone knows what to do?
by the way other games wifi works just fine with friends so thats weird..
please help i must play it with friends =\