When getting online with the BBA for the first time, you need to configure PSO by using the XDP web browser or PSO NTSC/J. These have Dreampassport based web browsers in them. You can use any Broadband capable Dreampassport browsers to configure with also. They are in Japanese so your best bet is to download the free XDP browser. http://dreamcast-talk.com/uploads/pso/xdplimitededition.rar

For XDP, choose original user agent and then choose options. Choose bba to configure and leave all entries at default. Don't change anything unless you know what you are doing. It should connect fine without modifying. At the end of the configuration, be sure to save when prompted. Try visiting a website in XDP. If that works, you're ready to move on to the next steps of the guide.

If using PSO v2 NTSC/J just load up the game and choose the website option to configure, save and exit.

If you will be using Dr.DNS to connect with you can now use XDP, PSO NTSC/U or any other web browser to get it working. Be sure to read the guide for instructions on getting Dr.DNS working.