}

        SmbNegotiation resp;
        try {
            resp = negotiate(this.port);
        }
        catch ( IOException ce ) {
            if ( getContext().getConfig().isPort139FailoverEnabled() ) {
                this.port = ( this.port == 0 || this.port == DEFAULT_PORT ) ? 139 : DEFAULT_PORT;
                this.smb2 = false;
                this.mid.set(0);
                resp = negotiate(this.port);