I keep getting that message when i try to conenct to pso.

I use a bba which connect to hub then to a another ub/switch so that i can have my computer/gamecube and a third family computer all hooked up at once. If i put in network settings like my computers it gets further in the connection however it allways gets a message at the lobby screen that it couldn't connect to the server because of bad network.

Im in the NE and using ATT Broadband. It was working fine for a long long time, i didn't change anything on my System. I don't understand why it would act like this all of a sudden unless a change in my ISP network.