I have about 80 clients installed spark across the enterprise and the following occurs: when user A wants to talk to user B, the Spark client freezes. The same happens when the user B wants to talk to user A.
This happens nothing but these two users ie user A does not happen with any other contact in your list and not user B with no other contact in your list.
Already proved Spark and reinstalling Java, but the problem persists.
From already, thank you very much.