Fortinet FortiOS vs Untangle NG Firewall comparison

Fortinet and Arista are both solutions in the Firewalls category. Fortinet is ranked #18 with an average rating of 8.7, while Arista is ranked #32 with an average rating of 8.0. Fortinet holds a 1.1% mindshare in Firewalls, compared to Arista’s 1.0% mindshare. Additionally, 98% of Fortinet users are willing to recommend the solution, compared to 94% of Arista users who would recommend it.

Fortinet FortiOS

Read 82 Fortinet FortiOS reviews

5,585 Views
4,021 Comparison Views

98% willing to recommend

Untangle NG Firewall

Read 26 Untangle NG Firewall reviews

4,424 Views
3,760 Comparison Views

94% willing to recommend

Fortinet FortiOS

Untangle NG Firewall

Comparison Buyer's Guide

Download the report

Executive SummaryUpdated on Sep 16, 2024

Fortinet FortiOS and Untangle NG Firewall are competitive firewall products. Fortinet FortiOS appears to have the upper hand in security features, while Untangle NG Firewall is noted for its user-friendly deployment and compelling overall package.

Features: Fortinet FortiOS has a robust security infrastructure, extensive integrated services, and reliable threat detection and mitigation. Untangle NG Firewall is user-friendly, modular, and allows businesses to customize the firewall to specific needs. Fortinet focuses on stronger security, while Untangle emphasizes customization and ease of use.

Room for Improvement: Fortinet FortiOS users often mention complexity, a steep learning curve, and cumbersome navigation as areas needing improvement. Untangle NG Firewall users suggest enhancing reporting features, better integration with third-party tools, and improving its comprehensive capabilities. Fortinet's complexity may affect user experience whereas Untangle could improve in reporting and integration.

Ease of Deployment and Customer Service: Fortinet FortiOS deployment is intricate and requires significant expertise, but customer support is highly rated. Untangle NG Firewall has an easy deployment process and management, suitable for smaller teams, although its customer service can be less responsive than Fortinet's. Fortinet has robust support, while Untangle is simpler to set up but may lag in responsiveness.

Pricing and ROI: Fortinet FortiOS has a higher setup cost but provides strong long-term ROI due to comprehensive security features. Untangle NG Firewall is more cost-effective initially, with lower setup costs and good ROI, particularly for smaller enterprises. Fortinet is initially more expensive, offering strong ROI over time, whereas Untangle is budget-friendly with satisfactory ROI.

To learn more, read our detailed Fortinet FortiOS vs. Untangle NG Firewall Report (Updated: June 2026).

Buyer's Guide

Fortinet FortiOS vs. Untangle NG Firewall

June 2026

Download the complete report

Helped 902,988 peers since 2012

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

ROI

Sentiment score

6.3

Fortinet FortiOS offers cost-effective, scalable security, with competitive pricing and partnerships, enhancing ROI compared to top brands.

Sentiment score

6.5

Untangle NG Firewall saves users time and money, simplifies management, enhances security, and offers substantial ROI through scalable solutions.

Once it is deployed, I do not have to revisit or replace the hardware.

Brian M.

Network Administrator at a educational organization with 501-1,000 employees

The pricing of FortiOS is competitive and reasonable compared to other leading products such as Palo Alto and Check Point.

Harshama Silva

Senior Manager at ITX360 (Pvt) Ltd

Fortinet is strong in terms of cost and compatibility with other vendors.

Özden-Aydın

Technology Consultant at 1ware

For more quotes and insights, download the Fortinet FortiOS report

My ability to monetize it as a gateway security appliance to offer enhanced service offerings allows me to increase our price point.

Matt @ CasCom

Service Delivery Manager at CasCom

For more quotes and insights, download the Untangle NG Firewall report

Customer Service

Sentiment score

8.2

Fortinet FortiOS support is responsive and helpful but sometimes slow with complex issues, lacking top-tier vendor standards.

Sentiment score

5.6

Untangle NG Firewall's support is responsive but faces challenges with time zones, expertise, resources, and documentation improvements.

I would rate them nine or ten out of ten.

Özden-Aydın

Technology Consultant at 1ware

Fortinet technical support is very responsive and helpful.

Harshama Silva

Senior Manager at ITX360 (Pvt) Ltd

Support engineers sometimes lack eagerness to assist with issues such as the memory problem.

Mitku Bitew

Director, IT Infrastructure Department at Zemen Bank S.C.

For more quotes and insights, download the Fortinet FortiOS report

They're able to remotely manage the devices if necessary for support.

Matt @ CasCom

Service Delivery Manager at CasCom

I use official documentation, guides, or manuals for Untangle NG Firewall.

Panagiotis Kontaxis

Information Technology System Administrator at Ίδρυμα Ευγενίδου / Eugenides Foundation

They got back to me pretty quickly, the response time was fast, and they're knowledgeable.

Gary-Downey

Director of Information Technology at a consultancy with 11-50 employees

For more quotes and insights, download the Untangle NG Firewall report

Scalability Issues

Sentiment score

8.2

Fortinet FortiOS is highly scalable, adapting to different organizations, supporting growth and global deployments, yet may need hardware upgrades.

Sentiment score

6.3

Untangle NG Firewall is versatile, scalable, and suitable for both large enterprises and small businesses, supporting varied user demands.

When customers' networks grow and needs expand, we can easily switch between models to trade up devices.

Özden-Aydın

Technology Consultant at 1ware

It allows for the expansion of users and devices without additional licensing costs.

Harshama Silva

Senior Manager at ITX360 (Pvt) Ltd

We have been using Fortinet for bandwidth shaping and many other bandwidth-related functions.

Mitul-Shah

Associate Director IT Operations at Procento

For more quotes and insights, download the Fortinet FortiOS report

Since it can be put on any box, the scalability is fantastic.

Matt @ CasCom

Service Delivery Manager at CasCom

For more quotes and insights, download the Untangle NG Firewall report

Stability Issues

Sentiment score

7.8

Fortinet FortiOS is praised for stability, with minor issues usually tied to configurations or external factors, not the system.

Sentiment score

8.4

Untangle NG Firewall is praised for stability and reliability, experiencing minor issues but no major disruptions, suitable for large-scale administration.

While the product is largely stable, it sometimes faces memory issues in specific versions like 11 OE, which can be disruptive.

Mitku Bitew

Director, IT Infrastructure Department at Zemen Bank S.C.

There were no lags, there were no issues, and no hanging of the firewall.

Mitul-Shah

Associate Director IT Operations at Procento

Stability is a seven out of ten because during version migrations, and sometimes with new versions, Fortinet is not as good.

Özden-Aydın

Technology Consultant at 1ware

For more quotes and insights, download the Fortinet FortiOS report

I would rate the stability and reliability of Untangle NG Firewall as a ten.

Panagiotis Kontaxis

Information Technology System Administrator at Ίδρυμα Ευγενίδου / Eugenides Foundation

I haven't had to mess with it too much; it's pretty stable.

Gary-Downey

Director of Information Technology at a consultancy with 11-50 employees

For more quotes and insights, download the Untangle NG Firewall report

Room For Improvement

Fortinet FortiOS requires improvements in VPN, pricing, compatibility, UI, security features, support, updates, deployment, and pricing consistency.

Untangle NG Firewall needs improved support, a streamlined console, and enhanced features like web filtering, mobile access, and reporting.

Fortinet FortiOS faces memory issues, which can lead to unexpected downtimes.

Mitku Bitew

Director, IT Infrastructure Department at Zemen Bank S.C.

There should be more documentation on how to use the CLI or how to perform CLI versions of tasks that can be done through the GUI.

Brian M.

Network Administrator at a educational organization with 501-1,000 employees

Compared to other market leaders like Palo Alto and Check Point, FortiOS has many bugs in its initial releases.

Harshama Silva

Senior Manager at ITX360 (Pvt) Ltd

For more quotes and insights, download the Fortinet FortiOS report

The user interface, training, and general product innovation need improvement.

Matt @ CasCom

Service Delivery Manager at CasCom

I haven't dug into the advanced features, but I think some of the advanced capabilities are probably where it lacks a little bit, with the filtering and firewall rules.

Gary-Downey

Director of Information Technology at a consultancy with 11-50 employees

I would like to improve the ad blocker and SSL Inspector by having more settings in the filters, cookie filters, and pass lists.

Panagiotis Kontaxis

Information Technology System Administrator at Ίδρυμα Ευγενίδου / Eugenides Foundation

For more quotes and insights, download the Untangle NG Firewall report

Setup Cost

Fortinet FortiOS is often pricey but justified by features, with agreements influencing costs, suitable for mid-size businesses.

Untangle NG Firewall's modular pricing varies with setup size, offering cost-effective open-source options and flexible enterprise packages.

It is an affordable solution for us.

Özden-Aydın

Technology Consultant at 1ware

Fortinet products are somewhat pricey, similar to Cisco equivalents, however, they have justified their price point.

Brian M.

Network Administrator at a educational organization with 501-1,000 employees

I am satisfied with the pricing, licensing, and setup costs of FortiOS, rating it nine out of ten compared to other familiar leading firewalls.

Harshama Silva

Senior Manager at ITX360 (Pvt) Ltd

For more quotes and insights, download the Fortinet FortiOS report

It's less expensive, especially because it has a lot of the pieces integrated into the firewall, so you get savings on that front.

Gary-Downey

Director of Information Technology at a consultancy with 11-50 employees

It is not very expensive, so it is affordable for my budget.

Panagiotis Kontaxis

Information Technology System Administrator at Ίδρυμα Ευγενίδου / Eugenides Foundation

For more quotes and insights, download the Untangle NG Firewall report

Valuable Features

Fortinet FortiOS is praised for UTM, user-friendly interface, robust security, excellent performance, cost-effectiveness, and seamless management.

Untangle NG Firewall provides versatile security features, easy setup, and centralized management, ideal for small businesses on generic hardware.

It is user-friendly when it comes to turning on features, and it has been reliable and effective.

Brian M.

Network Administrator at a educational organization with 501-1,000 employees

The threat intelligence in FortiOS is very high, and the system is scalable without additional licensing costs.

Harshama Silva

Senior Manager at ITX360 (Pvt) Ltd

The solution offers good threat intelligence, which is crucial for our customers' security purposes.

Özden-Aydın

Technology Consultant at 1ware

For more quotes and insights, download the Fortinet FortiOS report

The ease of use and the built-in and integrated features, including the apps that include OpenVPN, IPsec, and WireGuard VPN, are all built straight into Untangle NG Firewall.

Gary-Downey

Director of Information Technology at a consultancy with 11-50 employees

The all-in-one gateway security functions and the ability to install it on generic equipment stand out.

Matt @ CasCom

Service Delivery Manager at CasCom

The most useful features of Untangle NG Firewall are the firewall and bandwidth control capabilities.

Panagiotis Kontaxis

Information Technology System Administrator at Ίδρυμα Ευγενίδου / Eugenides Foundation

For more quotes and insights, download the Untangle NG Firewall report

Categories and Ranking

Fortinet FortiOS

Ranking in Firewalls

18th

Average Rating

8.4

Reviews Sentiment

8.0

Number of Reviews

Ranking in other categories

No ranking in other categories

Untangle NG Firewall

Ranking in Firewalls

32nd

Average Rating

8.6

Reviews Sentiment

7.0

Number of Reviews

Ranking in other categories

Unified Threat Management (UTM) (10th)

Mindshare comparison

As of July 2026, in the Firewalls category, the mindshare of Fortinet FortiOS is 1.1%, up from 1.1% compared to the previous year. The mindshare of Untangle NG Firewall is 1.0%, down from 1.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Firewalls Mindshare Distribution
Product	Mindshare (%)
Fortinet FortiOS	1.1%
Untangle NG Firewall	1.0%
Other	97.9%

Firewalls

Featured Reviews

Mitul-Shah

Associate Director IT Operations at Procento

Single-pane management has simplified firewall control and has improved risk mitigation

I would not say that Fortinet FortiOS is not very scalable. Generally, what happens is that for enterprises, we hire consultants who do the capacity planning and sizing to determine what kind of firewalls to put in place. At the same time, it is not only the number of users; it also depends on the number of WAN links coming in and everything, because we have been using Fortinet for bandwidth shaping and many other bandwidth-related functions. They should improve their machine learning AI capabilities of Fortinet FortiOS because there is too much competition. Other players are also improving and making a lot of changes in their UI and overall operating system.

Read full review

Gary-Downey

Director of Information Technology at a consultancy with 11-50 employees

Has provided built-in VPN tools and reporting features that streamline remote access and monitoring tasks

We do an outside-sourced threat prevention regarding the Threat Prevention features. I haven't run into areas that could be improved or cons versus pros for Untangle NG Firewall. I haven't done anything too advanced when it comes to the filtering, so I'm not sure what can be improved or added. I haven't dug into the advanced features, but I think some of the advanced capabilities are probably where it lacks a little bit, with the filtering and firewall rules. These areas could be improved to make it a nine out of 10 or a 10 out of 10 for overall rating.

Read full review

See which vendors are best for you

Use our free recommendation engine to learn which Firewalls solutions are best for your needs.

See recommendations

902,988 professionals have used our research since 2012.

Top Industries

By visitors reading reviews

Construction Company

11%

Manufacturing Company

Comms Service Provider

Financial Services Firm

Comms Service Provider

16%

Construction Company

Manufacturing Company

University

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	43
Midsize Enterprise	13
Large Enterprise	23

By reviewers
Company Size	Count
Small Business	26
Midsize Enterprise	1

Questions from the Community

Features comparison between Palo Alto and Fortinet firewalls

In the best tradition of these questions, Feature-wise both are quite similar, but each has things it's better at, it kind of depends what you value most. PA is good at app control, web filtering a...

See all answers

What is your experience regarding pricing and costs for Fortinet FortiOS?

I rate the pricing for FortiOS as eight or nine out of ten. It is an affordable solution for us.

See all answers

What needs improvement with Fortinet FortiOS?

See all answers

What is your experience regarding pricing and costs for Untangle NG Firewall?

It is not very expensive, so it is affordable for my budget.

See all answers

What needs improvement with Untangle NG Firewall?

I would appreciate improvements to the ad blocker and SSL Inspector of Untangle NG Firewall.

See all answers

What is your primary use case for Untangle NG Firewall?

My usual use cases for Untangle NG Firewall are just like a firewall and router. The main purpose is for firewall functionality. It has a captive portal, web filter, virus blocker, spam blocker, ba...

See all answers

Comparisons

Fortinet FortiGate vs Fortinet FortiOS

Compared 13% of the time

Fortinet FortiWeb vs Fortinet FortiOS

Compared 8% of the time

Cisco Secure Firewall vs Fortinet FortiOS

Compared 7% of the time

Azure Firewall vs Fortinet FortiOS

Compared 5% of the time

Forcepoint Next Generation Firewall vs Fortinet FortiOS

Compared 5% of the time

More Fortinet FortiOS Competitors

OPNsense vs Untangle NG Firewall

Compared 16% of the time

Sophos UTM vs Untangle NG Firewall

Compared 9% of the time

Fortinet FortiGate vs Untangle NG Firewall

Compared 9% of the time

Netgate pfSense vs Untangle NG Firewall

Compared 7% of the time

Sophos Firewall vs Untangle NG Firewall

Compared 5% of the time

More Untangle NG Firewall Competitors

Product Reports

Buyer's Guide

Fortinet FortiOS

June 2026

Download Fortinet FortiOS product report

Buyer's Guide

Untangle NG Firewall

June 2026

Download Untangle NG Firewall product report

Overview

Fortinet FortiOS is recognized for its intuitive interface, ease of use, and comprehensive security features, making it a valuable tool for network security and management. Its integration capabilities and affordability prove beneficial for small to mid-sized businesses.

Fortinet FortiOS stands out as a firewall operating system, offering solutions in network security with a user-friendly design. It provides strong management tools like Unified Threat Management, web filtering, intrusion prevention, and antivirus functionalities. Its scalability and robust support make it ideal for diverse business environments. Users can benefit from high availability, seamless integration with other networks, and SD-WAN capabilities. Though there is room for improvement in monitoring and logging features, as well as VPN complexity and browser compatibility, its comprehensive range of features supports secure operations.

What are some key features of Fortinet FortiOS?

Unified Threat Management: Consolidates multiple security features into one platform for streamlined protection.
Web Filtering: Blocks access to harmful websites to enhance browsing safety.
Intrusion Prevention: Identifies and mitigates network threats in real time.
Antivirus Capabilities: Detects and neutralizes malicious software before it infiltrates systems.
Advanced Threat Detection: Uses analytics to uncover sophisticated threats.

What benefits should users expect from Fortinet FortiOS?

Scalability: Easily adapts to an organization's growing security needs.
Stability: Provides consistent and reliable performance for network infrastructures.
Robust Support: Access to extensive resources and customer support for issue resolution.
Integration: Harmonizes efficiently with existing networks and third-party solutions.
Pricing: Offers a competitive and reasonable cost structure.

Fortinet FortiOS is leveraged across multiple industries for its strong security capabilities. Companies utilize it for secure connections, VPN setups, and traffic management. It is essential for organizations seeking to protect data centers, ensure secure branch connectivity, and deploy SD-WAN. Its design supports implementation in cloud environments and enhances virtual infrastructure protection, making it particularly suitable for small to mid-tier businesses looking for comprehensive security measures.

Fortinet

Untangle NG Firewall provides a user-centric security firewall solution. It combines ease of integration with features such as comprehensive web filtering, VPN capabilities, and content control, tailored for small businesses and scalable for enterprise deployments.

Untangle NG Firewall is designed to enhance network security for small businesses, law offices, and unions. It offers centralized management and strong performance with features like SSL inspection, application control, and threat detection. Users appreciate customization options, bandwidth management, and tools like OpenVPN. However, there is room for improvement in reporting, hardware specs, and configuration options to match evolving security requirements. The call for a mobile app, better content filtering, and robust VPN capabilities is growing alongside a desire for improved licensing and support structures.

What are the important features?

Web Filtering: Provides comprehensive controls for managing internet access.
VPN Capabilities: Ensures secure remote access via stable VPN connections.
SSL Inspection: Inspects encrypted traffic for threats.
Application Control: Allows management of applications in the network.
Threat Detection: Identifies and mitigates potential security risks.

What benefits and ROI can be found in reviews?

User-Friendliness: Simplifies network management with easy setup and integration.
Cost-Effectiveness: Affordable pricing with potential savings through hardware-as-a-service model.
Security: Offers robust security features and tools to ensure network safety.
Scalability: Accommodates growth from small to enterprise-level networks.

In industries like law offices and unions, Untangle NG Firewall is implemented primarily on-premises and managed via the cloud. Its integration with existing hardware allows for seamless deployment, delivering features such as web filtering, intrusion prevention, and virus blocking. The easy setup and diverse capabilities make it a suitable option for enhancing security in various professional environments.

Arista

Sample Customers

Black Gold Regional Schools, Amadeus Hospitality, Jefferson County, Chunghwa Telecom, City of Boroondara, Dimension Data

North American Stamping Group, Cerebral Palsy of North Jersey (CPNJ), Brown County Schools, IN, City of Bridgeton, MO, Lancaster County, SC, Vision Charter School, Clay County Sheriff’s Department, NC, Breakwater School, Boys & Girls Club of Manchester, NH, Admiral Farragut Academy, Flow Companies, No Ordinary Hotel, KECdesign,

Buyer's Guide

Fortinet FortiOS vs. Untangle NG Firewall

June 2026

Free Report: Fortinet FortiOS vs. Untangle NG Firewall

Find out what your peers are saying about Fortinet FortiOS vs. Untangle NG Firewall and other solutions. Updated: June 2026.

DOWNLOAD NOW

902,988 professionals have used our research since 2012.

See our Fortinet FortiOS vs. Untangle NG Firewall report.

See our list of best Firewalls vendors.

We monitor all Firewalls reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.