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Fortinet FortiOS vs SonicWall NSSP 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
6.3
Fortinet FortiOS offers cost-effective, scalable security, with competitive pricing and partnerships, enhancing ROI compared to top brands.
Sentiment score
3.5
SonicWall NSSP improved network security, reduced threat management time, increased efficiency, and provided significant cost savings and robust support.
Once it is deployed, I do not have to revisit or replace the hardware.
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.
Senior Manager at ITX360 (Pvt) Ltd
Fortinet is strong in terms of cost and compatibility with other vendors.
Technology Consultant at NetWiser
 

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
7.3
SonicWall NSSP is appreciated for reliability and responsiveness, but some users report dissatisfaction with support team responses.
I would rate them nine or ten out of ten.
Technology Consultant at NetWiser
Fortinet technical support is very responsive and helpful.
Senior Manager at ITX360 (Pvt) Ltd
Support engineers sometimes lack eagerness to assist with issues such as the memory problem.
Director, IT Infrastructure Department at Zemen Bank S.C.
It is very effective because it prevents any indecent behaviors in the network or from outside the network.
Head of IT and Information Security at GLEEDS USA INC
I rate the technical support provided by SonicWall a perfect ten out of ten.
Pre Sales at ITCG SOlutions Pvt Ltd
 

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
6.8
SonicWall NSSP offers scalable security features, with user ratings from three to ten, suitable for SMBs and data centers.
When customers' networks grow and needs expand, we can easily switch between models to trade up devices.
Technology Consultant at NetWiser
It allows for the expansion of users and devices without additional licensing costs.
Senior Manager at ITX360 (Pvt) Ltd
We have been using Fortinet for bandwidth shaping and many other bandwidth-related functions.
Associate Director IT Operations at Procento
The scalability rating is nine out of 10.
Head of IT and Information Security at GLEEDS USA INC
SonicWall NSSP offers features such as stateful firewall, deep packet inspections, IPS, application intelligence, user-based policies, centralized visibility from the management console, advanced protection with RFDPI, high-speed scanning, RTDMI technology, Capture ATP, cloud sandboxing, and encrypted traffic inspection with DPI-SSL and TLS.
Pre Sales at ITCG SOlutions Pvt Ltd
 

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
5.6
SonicWall NSSP is stable, with rare issues and smooth data transfers, but DPI-SSL can impact performance.
While the product is largely stable, it sometimes faces memory issues in specific versions like 11 OE, which can be disruptive.
Director, IT Infrastructure Department at Zemen Bank S.C.
There were no lags, there were no issues, and no hanging of the firewall.
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.
Technology Consultant at NetWiser
In 30 years, only three to four boxes out of 1,000 to 2,000 boxes have had issues.
Owner at ANOC
The stability rating is 10 out of 10.
Head of IT and Information Security at GLEEDS USA INC
I think deep packet inspection of SonicWall NSSP is essential, as I require all features, including deep packet inspection, which I can enable and suggest to clients.
Pre Sales at ITCG SOlutions Pvt Ltd
 

Room For Improvement

Fortinet FortiOS requires improvements in VPN, pricing, compatibility, UI, security features, support, updates, deployment, and pricing consistency.
SonicWall needs upgraded reporting, intuitive UI, robust NSM, better EDR/XDR, marketing, and firmware fixes to compete effectively.
Fortinet FortiOS faces memory issues, which can lead to unexpected downtimes.
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.
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.
Senior Manager at ITX360 (Pvt) Ltd
This would help end-user customers understand the impact when those firmwares are pushed into the live environment.
Head of IT and Information Security at GLEEDS USA INC
The issues I have experienced are not hardware-related but firmware-related, as Gen 7 has new hardware, while the firmware contains some issues that could be resolved but may take considerable time.
Pre Sales at ITCG SOlutions Pvt Ltd
 

Setup Cost

Fortinet FortiOS is often pricey but justified by features, with agreements influencing costs, suitable for mid-size businesses.
SonicWall NSSP pricing ranges widely based on licensing, with enterprise users valuing its features despite varying international costs.
It is an affordable solution for us.
Technology Consultant at NetWiser
Fortinet products are somewhat pricey, similar to Cisco equivalents, however, they have justified their price point.
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.
Senior Manager at ITX360 (Pvt) Ltd
When purchasing through local distributors such as ScanSource or Tech Data, they incur around 100% in taxes just for import procedures.
Owner at ANOC
 

Valuable Features

Fortinet FortiOS is praised for UTM, user-friendly interface, robust security, excellent performance, cost-effectiveness, and seamless management.
SonicWall NSSP offers strong security with user-friendly management, scalable features, real-time threat blocking, and comprehensive protection.
It is user-friendly when it comes to turning on features, and it has been reliable and effective.
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.
Senior Manager at ITX360 (Pvt) Ltd
The solution offers good threat intelligence, which is crucial for our customers' security purposes.
Technology Consultant at NetWiser
SonicWall uses this information in real-time to enhance security functions such as firewall, DPI-SSL, ATP, and IPS to block threats at the network edge before they reach users.
Pre Sales at ITCG SOlutions Pvt Ltd
Every time I have had a concern, they have resolved it in a single call.
Head of IT and Information Security at GLEEDS USA INC
 

Categories and Ranking

Fortinet FortiOS
Ranking in Firewalls
20th
Average Rating
8.4
Reviews Sentiment
8.0
Number of Reviews
82
Ranking in other categories
No ranking in other categories
SonicWall NSSP
Ranking in Firewalls
31st
Average Rating
8.8
Reviews Sentiment
6.6
Number of Reviews
10
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2026, in the Firewalls category, the mindshare of Fortinet FortiOS is 1.1%, down from 1.1% compared to the previous year. The mindshare of SonicWall NSSP is 0.5%, up from 0.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Firewalls Mindshare Distribution
ProductMindshare (%)
Fortinet FortiOS1.1%
SonicWall NSSP0.5%
Other98.4%
Firewalls
 

Featured Reviews

MS
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.
SyedTaha - PeerSpot reviewer
Head of IT and Information Security at GLEEDS USA INC
Support has resolved concerns promptly and security tools have strengthened intrusion prevention and access control
The service we received from SonicWall NSSP and their distributors has been excellent. Every time I have had a concern, they have resolved it in a single call. The interface of SonicWall NSSP console is user-friendly with comprehensive features. The web filtering and access control policy are top priorities for me. It is very effective because it prevents any indecent behaviors in the network or from outside the network. Half of the task is completed by the intelligence based on the behavior. Installation was easy because our infrastructure has minimal requirements. For expanded infrastructure, support from a SonicWall NSSP technical team may be required. We have implemented it on our own.
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Top Industries

By visitors reading reviews
Construction Company
12%
Comms Service Provider
9%
Manufacturing Company
8%
Financial Services Firm
7%
Construction Company
22%
Comms Service Provider
18%
Manufacturing Company
7%
Outsourcing Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business43
Midsize Enterprise13
Large Enterprise23
By reviewers
Company SizeCount
Small Business7
Large Enterprise3
 

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 Fortinet FortiOS?
I rate the pricing for FortiOS as eight or nine out of ten. It is an affordable solution for us.
What needs improvement with Fortinet FortiOS?
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 fi...
What needs improvement with SonicWall NSSP?
In my opinion, SonicWall NSSP needs improvements, particularly in Gen 7 devices, where I face high data plane and management plane issues, especially when enabling User Level Authentication. I beli...
What is your primary use case for SonicWall NSSP?
I recommend SonicWall NSSP for multiple clients, including manufacturers and pharmaceutical clients, and based on the requirement, I perform proper sizing and suggest the appropriate model.
 

Also Known As

No data available
SonicWall Network Security Services Platform
 

Overview

 

Sample Customers

Black Gold Regional Schools, Amadeus Hospitality, Jefferson County, Chunghwa Telecom, City of Boroondara, Dimension Data
Comlogic, Depaul, Hutt City Council
Find out what your peers are saying about Fortinet FortiOS vs. SonicWall NSSP and other solutions. Updated: August 2026.
909,725 professionals have used our research since 2012.