I've been encountering problems to connect to PSN chats since the firmware 2.20. I am not alone in this case, my friends are in the same situation.

When somebody creates a chat, I cannot join it. Its says something like "communication problems with the others members of the chat".

Sometimes, after an connection test, it does work. And sometimes, there is nothing to do to make it right -_-.

Does any of you guys know how to solve this problem ?