So I also forwarded the ports suggested, and it didn't work, I then kept searching, and found more suggested ports to open here--> http://answers.ea.com/t5/Technical-Issues/Online-ports-to-open-for-Star-Wars-Battlefront/m-p/4940292#U4940292 , and once i opened the addtional ports (10000-29999 , 42100-42200, 6000, and theres another one) i haven't had the "You have lost connection..." message.
I've been dealing with the same issue now and have tried every "fix" out there. Nothing is working. I've tried using a static IP address, opening ports (screenshot attached) and every other trick in the book. I still can't get it to connect to multiplayer games (other than "once in a blue moon"). EA, can you please reach out and let us know what the deal is? If you're working on it, great but please don't ignore everyone and assume only a few folks are having issues. This has become very time consuming and frustrating.
My Info
Service Provider: Time Warner (very fast connection)
Region: Austin
PSN ID: Agent-Samson-OSI
It's obvious this is a major problem because multiple places are continuously talking about it. Here's just a small sample:
2. http://www.gamefaqs.com/boards/720952-star-wars-battlefront/72844247
3. http://starwars.ea.com/starwars/battlefront/forums/discussion/8090/constantly-losing-connection
4. https://www.reddit.com/r/PS4/comments/3tatkn/star_wars_battlefront_you_have_lost_connection_to/
What little I've played of the game is awesome but to have to try 50 times to get it working is ridiculous. I hope to hear from you soon.
