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Palo Alto Networks K2-Series vs Untangle NG Firewall comparison

 

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
6.2
Palo Alto Networks K2-Series improved cybersecurity, efficiency, and cost savings through enhanced visibility, automation, and reduced incident response times.
Sentiment score
6.5
Untangle NG Firewall saves users time and money, simplifies management, enhances security, and offers substantial ROI through scalable solutions.
For CN-Series, there is no competitor which works the same way as Palo Alto does.
Principle Cloud 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
8.0
Palo Alto Networks K2-Series support is praised for vendor responsiveness and expertise, though partner support is less reliable.
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 tech support from Palo Alto Networks at around eight out of ten points because we had dedicated people assigned to us.
Principle Cloud 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
I use official documentation, guides, or manuals for Untangle NG Firewall.
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.
Director of Information Technology at a consultancy with 11-50 employees
 

Scalability Issues

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
6.3
Untangle NG Firewall is versatile, scalable, and suitable for both large enterprises and small businesses, supporting varied user demands.
Vertical scaling allows you to purchase more powerful devices with additional RAM, compute, and larger model form factors.
Principle Cloud 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
7.8
Palo Alto Networks K2-Series is praised for exceptional stability and dependability, with minor configuration and maintenance issues reported.
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.
Palo Alto typically doesn't have many glitches.
Principle Cloud Architect at a tech services company with 11-50 employees
I would rate the stability and reliability of Untangle NG Firewall as a ten.
Information Technology System Administrator at Ίδρυμα Ευγενίδου / Eugenides Foundation
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

Palo Alto Networks K2-Series needs better pricing, integration, usability, and AI to address user demands for support and scalability.
Untangle NG Firewall needs improved support, a streamlined console, and enhanced features like web filtering, mobile access, and reporting.
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.
Principle Cloud 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
I would like to improve the ad blocker and SSL Inspector by having more settings in the filters, cookie filters, and pass lists.
Information Technology System Administrator at Ίδρυμα Ευγενίδου / Eugenides Foundation
 

Setup Cost

Palo Alto Networks K2-Series is expensive, suitable for large enterprises, with straightforward licensing but requires frequent price negotiations.
Untangle NG Firewall's modular pricing varies with setup size, offering cost-effective open-source options and flexible enterprise packages.
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
It is not very expensive, so it is affordable for my budget.
Information Technology System Administrator at Ίδρυμα Ευγενίδου / Eugenides Foundation
 

Valuable Features

Palo Alto Networks K2-Series provides advanced, scalable security with AI-driven features, strong threat prevention, and user-friendly management.
Untangle NG Firewall provides versatile security features, easy setup, and centralized management, ideal for small businesses on generic hardware.
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.
Principle Cloud 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
The most useful features of Untangle NG Firewall are the firewall and bandwidth control capabilities.
Information Technology System Administrator at Ίδρυμα Ευγενίδου / Eugenides Foundation
 

Categories and Ranking

Palo Alto Networks K2-Series
Ranking in Firewalls
36th
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
32nd
Average Rating
8.6
Reviews Sentiment
7.0
Number of Reviews
26
Ranking in other categories
Unified Threat Management (UTM) (11th)
 

Mindshare comparison

As of August 2026, in the Firewalls category, the mindshare of Palo Alto Networks K2-Series is 0.4%, up from 0.1% 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
ProductMindshare (%)
Untangle NG Firewall1.0%
Palo Alto Networks K2-Series0.4%
Other98.6%
Firewalls
 

Featured Reviews

Tejas Jain - PeerSpot reviewer
Principle Cloud 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
Construction Company
14%
Performing Arts
13%
Financial Services Firm
11%
Marketing Services Firm
8%
Comms Service Provider
16%
Construction Company
10%
University
9%
Manufacturing Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business15
Midsize Enterprise7
Large Enterprise13
By reviewers
Company SizeCount
Small Business26
Midsize Enterprise1
 

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...
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 for K2-Series alone is. Looking at the base Palo Alto capabilities, they are goi...
What needs improvement with Untangle NG Firewall?
I would appreciate improvements to the ad blocker and SSL Inspector of Untangle NG Firewall.
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...
 

Overview

 

Sample Customers

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: August 2026.
909,725 professionals have used our research since 2012.