Palo Alto Networks K2-Series vs SonicWall TZ comparison

Palo Alto Networks and SonicWall are both solutions in the Firewalls category. Palo Alto Networks is ranked #22 with an average rating of 8.8, while SonicWall is ranked #18 with an average rating of 9.2. Palo Alto Networks holds a 0.2% mindshare in Firewalls, compared to SonicWall’s 2.4% mindshare. Additionally, 96% of Palo Alto Networks users are willing to recommend the solution, compared to 88% of SonicWall users who would recommend it.

Comparison Buyer's Guide

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Executive SummaryUpdated on Jan 25, 2026

SonicWall TZ and Palo Alto Networks K2-Series compete in the network security space, focusing on firewalls and related security features. Based on the data comparisons, Palo Alto Networks K2-Series appears to have the upper hand due to its advanced IPS system, SSL inspection, and decryption abilities.

Features: SonicWall TZ offers ease of configuration for site-to-site VPNs and has competitive affordability. Its generous HA unit offer and content filtering capabilities are notable. Palo Alto Networks K2-Series excels with its strong IPS system, efficient SSL inspection, and precise URL inspection and controls.

Room for Improvement:SonicWall TZ users call for improved mail security and more intuitive GUI configurations. Outdated hardware and reporting tools need updates. Pricing and licensing complexities pose challenges. Palo Alto Networks K2-Series users seek lower costs and better threat intelligence integration. Improved GUI components and enhanced endpoint visibility are also desired. Alert functionalities and licensing costs could be streamlined.

Ease of Deployment and Customer Service:Both products support on-premises deployment. SonicWall is more suited for small businesses, while Palo Alto targets larger enterprises. SonicWall TZ's customer support has mixed reviews with issues like long wait times. Palo Alto provides reliable support, but frequent bug updates complicate management. Both could benefit from simpler user interfaces.

Pricing and ROI:SonicWall TZ offers competitive pricing with a la carte features but involves recurring subscription costs. It offers good ROI for small businesses. Palo Alto Networks K2-Series is generally expensive but is seen as valuable by those needing advanced security. Despite its high price, it offers significant security value. Both solutions have room to improve affordability, particularly for smaller enterprises.

To learn more, read our detailed Palo Alto Networks K2-Series vs. SonicWall TZ Report (Updated: December 2025).

Buyer's Guide

Palo Alto Networks K2-Series vs. SonicWall TZ

December 2025

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Helped 881,114 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

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

5.8

SonicWall TZ is favored by small businesses for its cost-effectiveness, security, and fast ROI within eight months.

Clients are now comfortable and not wasting productive hours on IT support.

MURALI NIDAMANURI

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.

Bart Homblé

BDM Fortinet & BDM Teamlead at Exclusive Networks

It's a very useful tool to mitigate and protect your enterprise.

Bernard Samontanes

Staff Infrastructure & Security Engineer at Mozn Systems

For more quotes and insights, download the Fortinet FortiGate report

For CN-Series, there is no competitor which works the same way as Palo Alto does.

reviewer9216065

Sr. Cloud Security Architect at a tech services company with 11-50 employees

For more quotes and insights, download the Palo Alto Networks K2-Series report

That is a reason to buy a firewall, and it is challenging to put a monetary value on security.

reviewer2618802

Administration IT at a engineering company with 11-50 employees

For more quotes and insights, download the SonicWall TZ report

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

3.9

SonicWall TZ receives mixed reviews on customer service, with technical support praised but improved response times requested.

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.

Alexandre Menezes

IT Manager at a consultancy with 10,001+ employees

I would rate the technical support for Fortinet FortiGate a ten out of ten.

AnishKumar

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.

Vasu Gala

Manager, Information Technology Operation/Presales at TechMonarch

For more quotes and insights, download the Fortinet FortiGate report

I would rate tech support from Palo Alto Networks at around eight out of ten points because we had dedicated people assigned to us.

reviewer9216065

Sr. Cloud Security Architect at a tech services company with 11-50 employees

We get Gold support from them, and they are pretty good.

reviewer2224035

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.

Rajiv John

Director at MICROLOGIC NETWORKS PRIVATE LIMITED

For more quotes and insights, download the Palo Alto Networks K2-Series report

Customer service is excellent.

reviewer2618802

Administration IT at a engineering company with 11-50 employees

For support, I would rate SonicWall TZ five out of 10.

Subhadip Pakrashi

CEO at Kapstone Technological Services LLP

For more quotes and insights, download the SonicWall TZ report

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

7.1

SonicWall TZ suits small to mid-sized businesses but planning and model choice are key for extensive scalability.

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.

Ian Manton

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.

reviewer2667480

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.

FatmaSamy

General Surgery Specialist at Helwan University Cairo

For more quotes and insights, download the Fortinet FortiGate report

Vertical scaling allows you to purchase more powerful devices with additional RAM, compute, and larger model form factors.

reviewer9216065

Sr. Cloud Security Architect at a tech services company with 11-50 employees

For more quotes and insights, download the Palo Alto Networks K2-Series report

No quotes available

For more quotes and insights, download the SonicWall TZ report

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

6.3

SonicWall TZ is praised for reliability and security, though occasional minor issues and update disruptions may occur.

We're experiencing 99.999% availability consistently.

Ricardo Biggs

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.

AnishKumar

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.

Juan Frias

CISO at a financial services firm with 1,001-5,000 employees

For more quotes and insights, download the Fortinet FortiGate report

Palo Alto typically doesn't have many glitches.

reviewer9216065

Sr. Cloud Security Architect at a tech services company with 11-50 employees

For more quotes and insights, download the Palo Alto Networks K2-Series report

In terms of stability, SonicWall doesn't have performance issues.

Rias Majeed

CTO at Exceed NetSec LLC

SonicWall TZ rates 10 out of 10 for stability.

Subhadip Pakrashi

CEO at Kapstone Technological Services LLP

SonicWall TZ is definitely stable and offers a good value for money.

reviewer2618802

Administration IT at a engineering company with 11-50 employees

For more quotes and insights, download the SonicWall TZ report

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.

SonicWall TZ needs interface, reporting, and support improvements, while high pricing and complex licensing affect user satisfaction.

These sessions should be around five to ten minutes long, allowing users and partners to quickly grasp the information without disrupting their daily tasks.

MURALI NIDAMANURI

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.

Elvis Mahadeo

Senior Systems Engineer at Caribbean Development Company

It would be better for customers to get immediate replacements even with a standard subscription.

Pravin Mandlik

Director at a tech services company with 11-50 employees

For more quotes and insights, download the Fortinet FortiGate report

Enhancing web traffic protection would be a great upgrade.

Krishnakumar M

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.

Rajiv John

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.

reviewer9216065

Sr. Cloud Security Architect at a tech services company with 11-50 employees

For more quotes and insights, download the Palo Alto Networks K2-Series report

Integration with other vendors, especially with VPNs, can be challenging and requires more effort when configuring.

Rias Majeed

CTO at Exceed NetSec LLC

SonicWall TZ could benefit from newer technology.

reviewer2618802

Administration IT at a engineering company with 11-50 employees

The VPN license should be improved by providing more free SSL VPN licenses.

Niranjan Prajapati

Pre-sales at ITCG SOlutions Pvt Ltd

For more quotes and insights, download the SonicWall TZ report

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.

SonicWall TZ's flexible pricing and upgrade promotions offer competitive, cost-effective solutions for small to medium enterprises despite setup costs.

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.

AiméKouchade

Network & System Admin at Invoke Studios

It offers cost savings as it is generally cheaper than the competition.

NilsPaley

IT Infrastructure Architect at Apotek 1

It is about 20% cheaper.

MithatBulut

Network Security Engineer at TD SYNNEX

For more quotes and insights, download the Fortinet FortiGate report

It's a little bit expensive.

Krishnakumar M

enterprise architect at a tech services company with 1-10 employees

The pricing for the Palo Alto Networks K2-Series solution is affordable.

Rajiv John

Director at MICROLOGIC NETWORKS PRIVATE LIMITED

For more quotes and insights, download the Palo Alto Networks K2-Series report

More licenses are required to purchase the perpetual license for SSL VPN and Global VPN.

Niranjan Prajapati

Pre-sales at ITCG SOlutions Pvt Ltd

When comparing similar products across vendors, there may be a small difference in cost.

Rias Majeed

CTO at Exceed NetSec LLC

I would also position its pricing as a three, where one is the lowest price and ten is the highest.

reviewer2618802

Administration IT at a engineering company with 11-50 employees

For more quotes and insights, download the SonicWall TZ report

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.

SonicWall TZ offers user-friendly configuration, robust security, VPN integration, remote access, and affordability, ideal for businesses.

These features help reduce our downtime, manage the ISPs, and deploy SLAs for all the website traffic.

Syed Ali Waqas

Head IT at Burraq Cyber Security Solutions

The most valuable feature of FortiGate is FortiView which provides proactive monitoring.

Viraj Fernandopulle

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.

VINAY GUJARATHI

Owner at Mindware Computer Solutions

For more quotes and insights, download the Fortinet FortiGate report

Overall, the K2-Series helps in much more protection, and dashboard compliances are being met.

Rajiv John

Director at MICROLOGIC NETWORKS PRIVATE LIMITED

We had configured dynamic user groups and App-ID based policies, which makes it all Zero Trust.

reviewer9216065

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.

reviewer2224035

Design engineer at a construction company with 201-500 employees

For more quotes and insights, download the Palo Alto Networks K2-Series report

For SMB segments, SonicWall performs well.

Rias Majeed

CTO at Exceed NetSec LLC

It was beneficial during COVID for remote work through its VPN functionality.

reviewer2618802

Administration IT at a engineering company with 11-50 employees

The advanced gateway security features such as web filter, application control filter, IPS, ideas, gateway antivirus, anti-spyware, and botnet filter are valuable.

Niranjan Prajapati

Pre-sales at ITCG SOlutions Pvt Ltd

For more quotes and insights, download the SonicWall TZ report

Categories and Ranking

Fortinet FortiGate

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 SonicWall TZ is 2.4%, down from 2.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Firewalls Market Share Distribution
Product	Market Share (%)
Fortinet FortiGate	18.8%
SonicWall TZ	2.4%
Palo Alto Networks K2-Series	0.2%
Other	78.6%

Firewalls

Featured Reviews

Vasu Gala

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.

Read full review

reviewer9216065

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.

Read full review

Subhadip Pakrashi

CEO at Kapstone Technological Services LLP

Provides reliable performance with strong features and simplicity

SonicWall TZ is user-friendly, admin-friendly, and a beautiful product. I have been selling SonicWall since 2007 without any issues. SonicWall has been working on it excellently. They are up to date, and their research team is good, making the box feature-rich. Based out of India, I have had some issues with their faulty channel policy. It's a very good product, an awesome product for those who want to use SonicWall TZ. You can bet on it, but check out the channel policies in India. They should check out the channels in the channel business. It's just a precaution, nothing more than that. Overall rating: 9 out of 10.

Read full review

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Top Industries

By visitors reading reviews

Computer Software Company

12%

Comms Service Provider

Manufacturing Company

Financial Services Firm

Performing Arts

23%

Computer Software Company

13%

Manufacturing Company

Comms Service Provider

Computer Software Company

13%

Comms Service Provider

Manufacturing Company

Healthcare Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	357
Midsize Enterprise	133
Large Enterprise	188

By reviewers
Company Size	Count
Small Business	14
Midsize Enterprise	8
Large Enterprise	13

By reviewers
Company Size	Count
Small Business	62
Midsize Enterprise	16
Large Enterprise	13

Questions from the Community

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When you compare these firewalls you can identify them with different features, advantages, practices and usage a...

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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...

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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 ...

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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...

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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.

See all answers

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 ...

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Would you choose Fortinet Fortigate or Sonicwall TZ?

I’ll say it depends on your needs. Fortinet FortiGate and SonicWall TZ are both next-gen firewalls (NGFW) with simila...

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What do you like most about SonicWall TZ?

The most valuable feature of SonicWall TZ is the double authentication, where it asks for one password and again asks...

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What is your experience regarding pricing and costs for SonicWall TZ?

The price is normal. It is a nominal cost for an SMB TZ used for SMB businesses. However, more licenses are required ...

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Comparisons

Sophos Firewall vs Fortinet FortiGate

Compared 20% of the time

Cisco Secure Firewall vs Fortinet FortiGate

Compared 13% of the time

Netgate pfSense vs Fortinet FortiGate

Compared 6% of the time

OPNsense vs Fortinet FortiGate

Compared 3% of the time

Cisco Meraki MX vs Fortinet FortiGate

Compared 3% of the time

More Fortinet FortiGate Competitors

Juniper SRX Series Firewall vs Palo Alto Networks K2-Series

Compared 32% of the time

Sophos Firewall vs Palo Alto Networks K2-Series

Compared 25% of the time

Cisco Secure Firewall vs Palo Alto Networks K2-Series

Compared 22% of the time

More Palo Alto Networks K2-Series Competitors

Sophos Firewall vs SonicWall TZ

Compared 16% of the time

Cisco Meraki MX vs SonicWall TZ

Compared 8% of the time

Netgate pfSense vs SonicWall TZ

Compared 7% of the time

WatchGuard Firebox vs SonicWall TZ

Compared 7% of the time

SonicWall NSa vs SonicWall TZ

Compared 6% of the time

More SonicWall TZ Competitors

Product Reports

Buyer's Guide

Fortinet FortiGate

January 2026

Download Fortinet FortiGate product report

Buyer's Guide

Palo Alto Networks K2-Series

January 2026

Download Palo Alto Networks K2-Series product report

Buyer's Guide

SonicWall TZ

January 2026

Download SonicWall TZ product report

Also Known As

Fortinet FortiGate Next-Generation Firewall

No data available

Dell SonicWALL TZ

Overview

Fortinet FortiGate is a versatile network security tool offering features like VPN, firewall, web filtering, intrusion prevention, and scalability. It is known for its performance and integration with other Fortinet products, making it a preferred choice for robust cybersecurity.

Fortinet FortiGate stands out as a comprehensive cybersecurity solution with strong performance and ease of configuration. It delivers unified threat management, integrating features such as dynamic routing, SD-WAN support, and centralized management. Despite its strengths, improvements in the web interface's stability, pricing structures, and reporting capabilities are needed. Users seek better integration with third-party tools and automation advancements to enhance the experience further. These enhancements, alongside improvements in bandwidth management and the reduction of licensing costs, are points of interest for users looking to capitalize on FortiGate's extensive capabilities.

What are Fortinet FortiGate's key features?

VPN: Ensures secure remote connections.
Firewall: Protects against unauthorized access.
Web Filtering: Blocks malicious sites and content.
Application Control: Manages and controls applications.
Intrusion Prevention: Detects and prevents vulnerabilities.
SSL Inspection: Enhances security by inspecting encrypted traffic.

What benefits should be considered when evaluating Fortinet FortiGate?

Affordability: Offers cost-effective security solutions.
Reliability: Known for consistent and stable performance.
Integration: Seamlessly integrates with other Fortinet products.
Comprehensive Protection: Provides broad threat protection capabilities.

Fortinet FortiGate is widely implemented across industries as a primary firewall system for securing internet gateways and safeguarding data centers. It supports businesses in achieving SD-WAN integration and enhances cybersecurity by providing essential features like antivirus, web filtering, and application control. Enterprises utilize FortiGate for securing remote connections and ensuring compliance with security standards, making it adaptable for different network sizes and industries.

Fortinet

Designed to handle growing throughput needs due to increasing amounts of application-, user-, and device-generated data, the K2-Series offers amazing performance and threat prevention capabilities to stop advanced cyberattacks and secure mobile network infrastructure, subscribers, and services.

Palo Alto Networks

The secure, sophisticated SonicWALL TZ is widely deployed at small businesses, retail, government, remote sites and branch offices. It combines high-performance intrusion prevention, malware blocking, content/URL filtering and application control.

SonicWall

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

AeroM_xico Delta TechOps, Unimat

Buyer's Guide

Palo Alto Networks K2-Series vs. SonicWall TZ

December 2025

Free Report: Palo Alto Networks K2-Series vs. SonicWall TZ

Find out what your peers are saying about Palo Alto Networks K2-Series vs. SonicWall TZ and other solutions. Updated: December 2025.

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