case SessionServicePacket.NEGATIVE_SESSION_RESPONSE:
                int errorCode = this.in.read() & 0xFF;
                switch ( errorCode ) {
                case NbtException.CALLED_NOT_PRESENT:
                case NbtException.NOT_LISTENING_CALLED:
                    this.socket.close();
                    break;
                default:
                    disconnect(true);

        }

        /*
         * We really should do the referral before this in case
         * the redirected target has different capabilities. But
         * the way we have been doing that is to call exists() which
         * calls this method so another technique will be necessary
         * to support DFS referral _to_ Win95/98/ME.
         */

        if ( th.isSMB2() ) {