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Palo Alto Networks K2-Series vs Untangle NG Firewall comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Sep 16, 2024

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
5.8
Fortinet FortiGate offers cost-effective, robust security, reducing expenses, enhancing efficiency, easy implementation, quick ROI, and improved network management.
Sentiment score
6.2
Palo Alto Networks K2-Series improved cybersecurity, efficiency, and cost savings through enhanced visibility, automation, and reduced incident response times.
Sentiment score
7.0
Untangle NG Firewall improves visibility, reduces management time, and enhances ROI through strategic, scalable security solutions for businesses.
Clients are now comfortable and not wasting productive hours on IT support.
Managing Director at a manufacturing company with 10,001+ employees
The automation part is giving us a cost benefit and speed; we can react faster.
BDM Fortinet & BDM Teamlead at Exclusive Networks
It's a very useful tool to mitigate and protect your enterprise.
Staff Infrastructure & Security Engineer at Mozn Systems
For CN-Series, there is no competitor which works the same way as Palo Alto does.
Sr. Cloud Security Architect at a tech services company with 11-50 employees
My ability to monetize it as a gateway security appliance to offer enhanced service offerings allows me to increase our price point.
Service Delivery Manager at CasCom
 

Customer Service

Sentiment score
6.6
Fortinet FortiGate's customer service is generally praised for responsiveness, though some users experience delays in critical situations.
Sentiment score
8.0
Palo Alto Networks K2-Series support is praised for vendor responsiveness and expertise, though partner support is less reliable.
Sentiment score
5.5
Untangle NG Firewall's customer service is effective yet mixed, with some users citing challenges like time zones and limited resources.
The quick resolution of issues with Fortinet FortiGate is due to the support of the company and the fact that the equipment is easy to work with.
IT Manager at a consultancy with 10,001+ employees
I would rate the technical support for Fortinet FortiGate a ten out of ten.
NAC Support at Rah Infotech Pvt Ltd
As a solution provider, when I encounter problems, I connect directly with Fortinet support, and they provide solutions within a very short time.
Manager, Information Technology Operation/Presales at TechMonarch
I would rate tech support from Palo Alto Networks at around eight out of ten points because we had dedicated people assigned to us.
Sr. Cloud Security Architect at a tech services company with 11-50 employees
We get Gold support from them, and they are pretty good.
Design engineer at a construction company with 201-500 employees
I would rate the technical support for the Palo Alto Networks K2-Series from Palo Alto as nine out of ten points.
Director at MICROLOGIC NETWORKS PRIVATE LIMITED
They're able to remotely manage the devices if necessary for support.
Service Delivery Manager at CasCom
They got back to me pretty quickly, the response time was fast, and they're knowledgeable.
Director of Information Technology at a consultancy with 11-50 employees
 

Scalability Issues

Sentiment score
7.1
Fortinet FortiGate is scalable and popular for SMEs but requires careful design and may incur scaling costs and licensing constraints.
Sentiment score
7.8
Palo Alto Networks K2-Series offers scalable, flexible solutions for organizations, excelling in network expansion and handling diverse environments.
Sentiment score
6.1
Untangle NG Firewall is praised for ease of scalability, adaptability, and flexible licensing, despite occasional capacity concerns.
They scale up really well from smaller models like the FortiGate 40 and 50 to bigger sites with the FortiGate 100 for more throughput - up to enterprise datacenters.
IT Manager at Daltons Limited
The variation comes in terms of the interfaces and throughputs, but from a security perspective, you get the same benefit, irrespective of whether you have an entry-level unit or an enterprise.
Cewa Solutions Architect at a tech services company with 11-50 employees
We determine sizing based on multiple factors: number of users, available links, traffic types, server count, services in use, and whether services will be published.
General Surgery Specialist at Helwan University Cairo
Vertical scaling allows you to purchase more powerful devices with additional RAM, compute, and larger model form factors.
Sr. Cloud Security Architect at a tech services company with 11-50 employees
Since it can be put on any box, the scalability is fantastic.
Service Delivery Manager at CasCom
 

Stability Issues

Sentiment score
7.7
Fortinet FortiGate is praised for its stability, with effective long-term performance and improvements in newer firmware versions.
Sentiment score
7.8
Palo Alto Networks K2-Series is praised for exceptional stability and dependability, with minor configuration and maintenance issues reported.
Sentiment score
8.2
Untangle NG Firewall is highly stable, efficiently supports high user volumes, and is praised for reliable updates and minimal crashes.
We're experiencing 99.999% availability consistently.
Manager, Information Technology at a consumer goods company with 11-50 employees
I would rate the stability of Fortinet FortiGate a ten out of ten.
NAC Support at Rah Infotech Pvt Ltd
Currently, we are experiencing a general outage of one of the main internet service providers of the Dominican Republic, and we have not been impacted in our operations because with SD-WAN, we have another internet service provider and we are working with the second WAN connection without any disruption.
CISO at a financial services firm with 1,001-5,000 employees
Palo Alto typically doesn't have many glitches.
Sr. Cloud Security Architect at a tech services company with 11-50 employees
I haven't had to mess with it too much; it's pretty stable.
Director of Information Technology at a consultancy with 11-50 employees
 

Room For Improvement

Fortinet FortiGate needs enhanced UI, simplified licensing, improved performance, reporting, third-party integration, and expanded automation features.
Palo Alto Networks K2-Series needs better pricing, integration, usability, and AI to address user demands for support and scalability.
Untangle NG Firewall needs enhancements in support, management, hardware, with requests for better options, features, and pricing adjustments.
These sessions should be around five to ten minutes long, allowing users and partners to quickly grasp the information without disrupting their daily tasks.
Managing Director at a manufacturing company with 10,001+ employees
The solution should be able to implement machine learning and analytics of all the logs for threat detection and protection.
Senior Systems Engineer at Caribbean Development Company
It would be better for customers to get immediate replacements even with a standard subscription.
Director at a tech services company with 11-50 employees
Enhancing web traffic protection would be a great upgrade.
enterprise architect at a tech services company with 1-10 employees
L1 engineers cannot work on the Palo Alto Networks K2-Series because it's too complex, which requires L2 and above level of engineers.
Director at MICROLOGIC NETWORKS PRIVATE LIMITED
With AI, if there is a Precision AI bundle that you're planning on exploring, then that definitely needs a significant uplift because currently it doesn't work for all the known models.
Sr. Cloud Security Architect at a tech services company with 11-50 employees
The user interface, training, and general product innovation need improvement.
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.
Director of Information Technology at a consultancy with 11-50 employees
 

Setup Cost

Enterprise buyers find Fortinet FortiGate costly initially, but cheaper overall, despite some high renewal and setup costs.
Palo Alto Networks K2-Series is expensive, suitable for large enterprises, with straightforward licensing but requires frequent price negotiations.
Untangle NG Firewall is cost-effective with flexible licensing, but costs increase with additional features and users.
Last year, I renewed the support for three years, which can sometimes be expensive but depends on the security benefits and how it helps us.
Network & System Admin at Invoke Studios
It offers cost savings as it is generally cheaper than the competition.
IT Infrastructure Architect at Apotek 1
It is about 20% cheaper.
Network Security Engineer at TD SYNNEX
It's a little bit expensive.
enterprise architect at a tech services company with 1-10 employees
The pricing for the Palo Alto Networks K2-Series solution is affordable.
Director at MICROLOGIC NETWORKS PRIVATE LIMITED
It's less expensive, especially because it has a lot of the pieces integrated into the firewall, so you get savings on that front.
Director of Information Technology at a consultancy with 11-50 employees
 

Valuable Features

Fortinet FortiGate provides robust, flexible security solutions with key features like web filtering, SSL VPN, SD-WAN, and centralized management.
Palo Alto Networks K2-Series provides advanced, scalable security with AI-driven features, strong threat prevention, and user-friendly management.
Untangle NG Firewall provides robust features like endpoint management and VPN, valued for ease of use, reliability, and affordability.
These features help reduce our downtime, manage the ISPs, and deploy SLAs for all the website traffic.
Head IT at Burraq Cyber Security Solutions
The most valuable feature of FortiGate is FortiView which provides proactive monitoring.
General Manager Group IT at DART GLOBAL LOGISTICS PTE. LTD.
We got a firewall and gave an SSL VPN to my client to connect to their servers, after which, such kind of activities involving ransomware attacks stopped.
Owner at Mindware Computer Solutions
Overall, the K2-Series helps in much more protection, and dashboard compliances are being met.
Director at MICROLOGIC NETWORKS PRIVATE LIMITED
We had configured dynamic user groups and App-ID based policies, which makes it all Zero Trust.
Sr. Cloud Security Architect at a tech services company with 11-50 employees
Mainly, it is very easy to understand, and the logs are very good.
Design engineer at a construction company with 201-500 employees
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.
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.
Service Delivery Manager at CasCom
 

Categories and Ranking

Fortinet FortiGate
Sponsored
Ranking in Firewalls
1st
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
580
Ranking in other categories
Secure Web Gateways (SWG) (2nd), Intrusion Detection and Prevention Software (IDPS) (1st), Software Defined WAN (SD-WAN) Solutions (1st), WAN Edge (1st), ZTNA (1st), Unified Threat Management (UTM) (1st)
Palo Alto Networks K2-Series
Ranking in Firewalls
22nd
Average Rating
8.4
Reviews Sentiment
7.4
Number of Reviews
35
Ranking in other categories
No ranking in other categories
Untangle NG Firewall
Ranking in Firewalls
35th
Average Rating
8.6
Reviews Sentiment
7.0
Number of Reviews
25
Ranking in other categories
Unified Threat Management (UTM) (12th)
 

Mindshare comparison

As of January 2026, in the Firewalls category, the mindshare of Fortinet FortiGate is 18.8%, down from 20.7% compared to the previous year. The mindshare of Palo Alto Networks K2-Series is 0.2%, up from 0.0% compared to the previous year. The mindshare of Untangle NG Firewall is 0.9%, down from 1.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Firewalls Market Share Distribution
ProductMarket Share (%)
Fortinet FortiGate18.8%
Palo Alto Networks K2-Series0.2%
Untangle NG Firewall0.9%
Other80.1%
Firewalls
 

Featured Reviews

Vasu Gala - PeerSpot reviewer
Manager, Information Technology Operation/Presales at TechMonarch
A stable solution with an intuitive interface and quick customer service
I have been working with Fortinet FortiGate, WatchGuard, Sophos, and SonicWall. I'm not as comfortable with SonicWall because of their UI and limitations. I prefer Fortinet above all other options. When it comes to configuration, I am confident in my ability to handle various tasks, including creating policies such as firewall rules, web policies, and application policies. Additionally, I can configure VPNs and implement load balancing, among other tasks. Overall, I feel much more comfortable working with Fortinet. Fortinet has made significant improvements by integrating AI with firewalls for threat analysis and prevention. In the past 2-3 years, they have launched FortiSASE and SIEM, and they also provide SOC services. Both Palo Alto and Fortinet FortiGate are excellent. While Fortinet FortiGate comes at higher prices, the functionality and support justify the cost. They promptly resolve firmware issues and inform all support providers about configuration changes.
reviewer9216065 - PeerSpot reviewer
Sr. Cloud Security Architect at a tech services company with 11-50 employees
Has provided strong traffic visibility and efficient policy management for advanced network environments
Palo Alto Networks K2-Series could be improved, though I don't think of much. I'm unsure how widespread the adoption for K2-Series alone is. Looking at the base Palo Alto capabilities, they are going in the right direction. K2 specifically about its efficacy with all these 5G protocols, the GPRS tunneling protocol performed without many hiccups during testing. With AI, if there is a Precision AI bundle that you're planning on exploring, then that definitely needs a significant uplift because currently it doesn't work for all the known models. There are many false positives that need to be addressed. While it's still ahead of its competitors, on the AI security side, there is quite a room for improvement.
Gary-Downey - PeerSpot reviewer
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.
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Top Industries

By visitors reading reviews
Computer Software Company
12%
Comms Service Provider
9%
Manufacturing Company
8%
Financial Services Firm
6%
Performing Arts
23%
Computer Software Company
13%
Manufacturing Company
8%
Comms Service Provider
5%
Comms Service Provider
14%
Manufacturing Company
9%
Computer Software Company
8%
University
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business357
Midsize Enterprise133
Large Enterprise188
By reviewers
Company SizeCount
Small Business14
Midsize Enterprise8
Large Enterprise13
By reviewers
Company SizeCount
Small Business25
Midsize Enterprise1
 

Questions from the Community

Which is the better NGFW: Fortinet Fortigate or Cisco Firepower?
When you compare these firewalls you can identify them with different features, advantages, practices and usage a...
What is the biggest difference between Sophos XG and FortiGate?
From my experience regarding both the Sophos and FortiGate firewalls, I personally would rather use FortiGate. I know...
What are the biggest technical differences between Sophos UTM and Fortinet FortiGate?
As a solution, Sophos UTM offers a lot of functionality, it scales well, and the stability and performance are quite ...
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...
What is your experience regarding pricing and costs for Palo Alto Networks K2-Series?
The pricing for the Palo Alto Networks K2-Series solution is affordable and there are no complaints about the licensing.
What needs improvement with Palo Alto Networks K2-Series?
Palo Alto Networks K2-Series could be improved, though I don't think of much. I'm unsure how widespread the adoption ...
What is your experience regarding pricing and costs for Untangle NG Firewall?
Based on my experience, the pricing for Untangle NG Firewall is pretty comparable. I haven't bought a new one in a wh...
What needs improvement with Untangle NG Firewall?
We do an outside-sourced threat prevention regarding the Threat Prevention features. I haven't run into areas that co...
What is your primary use case for Untangle NG Firewall?
I just get on and monitor the interfaces, the networking, and the basics of it for this product.
 

Also Known As

Fortinet FortiGate Next-Generation Firewall
No data available
No data available
 

Overview

 

Sample Customers

Amazon Web Services, Microsoft, IBM, Cisco, Dell, HP, Oracle, Verizon, AT&T, T-Mobile, Sprint, Vodafone, Orange, BT Group, Telstra, Deutsche Telekom, Comcast, Time Warner Cable, CenturyLink, NTT Communications, Tata Communications, SoftBank, China Mobile, Singtel, Telus, Rogers Communications, Bell Canada, Telkom Indonesia, Telkom South Africa, Telmex, Telia Company, Telkom Kenya
State of North Dakota, SEGA, Alameda County Office of Education, Temple University, VERGE, CAME
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,
Find out what your peers are saying about Palo Alto Networks K2-Series vs. Untangle NG Firewall and other solutions. Updated: December 2025.
881,114 professionals have used our research since 2012.