^^^ ummm just find out your actual MTU value. But for MTU, I believe you just make it smaller, default is 1500. You can find out your exact MTU value if you read the guide. Today I had a very good soul calibur session as soon as the MTU was tweaked on the ps3. I went from finding one match every 10 mins or so, to finding a match every 2-3 mins. That one setting vastly improved my online. Also before I would only find people on rank matches if I searched 2 bars and above(although during the actual match, the bars were 3-4 bars). I can now search 4 bars+ and actually find people. I can't believe that one setting made such a difference.
Not only that, I was able to connect to my friend from new zealand (I live in the U.S, so hes quite far). Before when we attempted to connect to each other in player match, one of us would would always get kicked. Today I was actually able to connect to him and have a few matches. There was a little bit of lag, but it wasn't too bad. Quite a improvement from not being able to connect at all. We both originally assumed we could not connect to each other due to the distance between us.
I would definitely fiddle with the MTU setting on the ps3 if I were you ;D. Good luck.
Ehh I guess i'm the only person on this thread that started with connection problems... to being able to play scV online?