Board Thread:General Discussion/@comment-68.42.25.9-20130407214921/@comment-7962465-20130408193656

Sounds like NAT issues + PS3 bugs.

I'm not sure quite how screwed up the PS3 version is (I don't own one) so I can't tell you exactly why it's not working properly.

About the joining issues, what is your current NAT (Network Adress Translation)? Is it Strict, Moderate or Open?