if (socket.handshake.session && socket.handshake.session.clientLanguage != undefined) {
                serviceDistributor.removeTranslationLanguage(socket.handshake.session.clientLanguage);
                socket.leave('lang_' + socket.handshake.session.clientLanguage);
                socket.handshake.session.clientAuthenticated = false;
                delete  socket.handshake.session.clientName;