An connection failed from the client address because the accept was not completed by the subtask within the maximum number of seconds after the subtask started. With SSL connections, the client should execute SSL_connect() while the PowerExchange Listener subtask should upgrade the socket is an SLL connection, validates certificates and executes SSL_accept(), but this processing does not complete in time. With non-SLL connections, there is not a problem because the accept of the incoming connection is done in a single atomic transaction.