We're using it for web filtering, intrusion prevention system (IPS), intrusion detection system (IDS), and VPN. We are also using it as DSCP.
Senior Manager IT at Tata International Limited
Feature-rich and secure UTM box with fantastic support
Pros and Cons
- "The information security features are the most valuable."
- "You are getting a very good solution with all these features combined into one box."
- "It would be great if they can push the Microsoft updates through Fortinet OS and provide a centralized patch management system. They should also include the data loss prevention (DLP) and data leakage prevention features. They could also add network monitoring more effectively."
What is our primary use case?
What is most valuable?
The information security features are the most valuable.
What needs improvement?
It would be great if they can push the Microsoft updates through Fortinet OS and provide a centralized patch management system.
They should also include the data loss prevention (DLP) and data leakage prevention features. They could also add network monitoring more effectively.
For how long have I used the solution?
We have been using Fortinet FortiOS for nearly seven years.
Buyer's Guide
Fortinet FortiOS
August 2026
Learn what your peers think about Fortinet FortiOS. Get advice and tips from experienced pros sharing their opinions. Updated: August 2026.
909,099 professionals have used our research since 2012.
What do I think about the stability of the solution?
It is very much stable.
What do I think about the scalability of the solution?
It is very scalable. We have a global presence in more than 23 countries.
How are customer service and support?
We are satisfied with the support. They provide fantastic support. They provide online support, and on priority, they also provide a remote session.
How was the initial setup?
It is extremely easy to set up.
What about the implementation team?
We deployed it ourselves.
What other advice do I have?
This particular solution will be in a firewall. It's not a firewall, but it is a unified threat management (UTM) box. It acts as a firewall, plus it has many features like web filtering, VPN, DSCP, IPS, and IDS. It also has the high availability (HA) feature. You are getting a very good solution with all these features combined into one box.
I would rate Fortinet FortiOS a nine out of ten. We will surely keep using Fortinet FortiOS because it is a great and very secure product. We intend to only go with this product.
Which deployment model are you using for this solution?
On-premises
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Owner - Sales Manager / IT Enterprise Architect at a tech services company with 11-50 employees
Allows organizations to run their businesses without compromising performance or protection, supports seamless scalability, and simplifies innovation consumption
Pros and Cons
- "In terms of benefits, it’s a standard solution used by many, and our customers and partners widely utilize the VPN features. It’s elementary to work with and implement because it is familiar across different infrastructures."
- "Sometimes, Fortinet FortiOS changes its CLI (command line interface) with new versions, which leads to internal incompatibility. When this happens, you need to update the configuration to match the new format, as the commands aren’t always the same. This can create some confusion and extra work because, unlike other vendors where the CLI commands remain primarily consistent with updates, Fortinet often changes the syntax between versions."
What is our primary use case?
We are still using it in our company. We use FortiOS primarily for perimeter security and network segmentation.
What is most valuable?
In terms of benefits, it’s a standard solution used by many, and our customers and partners widely utilize the VPN features. It’s elementary to work with and implement because it is familiar across different infrastructures.
What needs improvement?
Sometimes, Fortinet FortiOS changes its CLI (command line interface) with new versions, which leads to internal incompatibility. When this happens, you need to update the configuration to match the new format, as the commands aren’t always the same. This can create some confusion and extra work because, unlike other vendors where the CLI commands remain primarily consistent with updates, Fortinet often changes the syntax between versions.
For how long have I used the solution?
We have been using Fortinet FortiOS for more than six years.
What do I think about the scalability of the solution?
Fortinet FortiOS is very scalable and can handle many users, depending on your hardware. Expanding it when needed is straightforward.
How are customer service and support?
It’s generally good, but there’s always room for improvement.
How would you rate customer service and support?
Positive
How was the initial setup?
The complexity of implementing and setting up Fortinet FortiOS depends on the customer'srequirements. With a network map of a hundred nodes, it could be either very complex or straightforward. There isn't a standard rule for this; it varies based on the specific design and planning needed. It would be best to have a straightforward design and a good plan before implementing. If the design isn't well done, you might need to make changes during the project, which isn't ideal.The time required for a full implementation of FortiOS can vary
significantly. It might be small but complex or large but straightforward—tthere'sno one-size-fits-
all pattern.
What about the implementation team?
For maintenance, FortiOS requires attention to patches because it handles many functions and can be complex. It's crucial to stay updated on your running version and check for any reported vulnerabilities to avoid potential issues.
What was our ROI?
The return on investment for FortiOS is good but not exceptional. It’s close to breaking even; not every case justifies the renewal cost.
What's my experience with pricing, setup cost, and licensing?
Regarding the cost, the initial purchase is relatively cheap because it comes bundled. However, the subscription renewals can be quite expensive. The renewal costs are high, even though the initial purchase might include discounts.
What other advice do I have?
Overall, I would rate Fortinet FortiOS an 8 out of 10. It’s a solid product but could improve in areas like update management. Currently, it’s up to the user to check for updates, and Fortinet doesn’t proactively notify you about necessary updates. If they know your version, they should inform you directly about any needed upgrades instead of relying on you to check.
Disclosure: My company has a business relationship with this vendor other than being a customer. Reseller
Buyer's Guide
Fortinet FortiOS
August 2026
Learn what your peers think about Fortinet FortiOS. Get advice and tips from experienced pros sharing their opinions. Updated: August 2026.
909,099 professionals have used our research since 2012.
IT Network Engineer at a computer software company with 11-50 employees
Has an easy initial setup process, but firmware updates need improvement
Pros and Cons
- "It efficiently manages large-scale firewall deployments."
- "The solution's firmware updates have significant bugs and issues."
What is most valuable?
The solution's most valuable feature is its ability to work efficiently with large-scale firewall deployments. Also, it provides custom segmentation for the firewall without adding any additional devices. It helps in reducing the cost of testing purposes.
What needs improvement?
The solution's firmware updates have significant bugs and issues. They affect the network and firewall. This particular area needs improvement. Also, they should include an advanced firewall feature.
For how long have I used the solution?
I have been using the solution for two years.
What do I think about the stability of the solution?
I rate the solution's stability as seven.
What do I think about the scalability of the solution?
I rate the solution's scalability a seven. The major bugs in the firmware update affect the scaling capabilities as well.
How was the initial setup?
The solution's initial setup process is easy.
What other advice do I have?
I rate the solution as a seven out of ten.
Which deployment model are you using for this solution?
On-premises
Disclosure: My company has a business relationship with this vendor other than being a customer. Partner
Manager at a tech services company with 51-200 employees
Great SD-WAN, IPS, and application control
Pros and Cons
- "It's very easy to use."
- "It has worked well for us overall, and we are happy with its capabilities."
- "They need to integrate more with the SD-WAN."
- "We would like to see lower pricing. The price is high."
What is most valuable?
It's very easy to use.
The SD-WAN, IPS, application control and web features are all very valuable aspects of the solution.
What needs improvement?
We haven't had any issues with the solution. It's been pretty good in general.
We would like to see the ability to maybe monitor applications that use the SD-WAN. They need to integrate more with the SD-WAN.
We would like to see lower pricing. The price is high.
For how long have I used the solution?
I've used the solution for a long time. It's been maybe ten years.
What do I think about the scalability of the solution?
We have about 100 users on the solution.
Which solution did I use previously and why did I switch?
I've also worked with Check Point.
What's my experience with pricing, setup cost, and licensing?
We have three years' worth of licensing before we have to renew anything. We renewed it about two years ago. The pricing could be a bit better.
What other advice do I have?
I'm a customer and an end-user.
I'd rate the solution nine out of ten. It has worked well for us overall, and we are happy with its capabilities.
Which deployment model are you using for this solution?
On-premises
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Networks & Securities Solutions supervisor at a tech vendor with 201-500 employees
Easy-to-manage internet gateway
Pros and Cons
- "FortiOS's best features are its function as an internet gateway and how easy it is to manage."
- "FortiOS's interface and monitoring could be improved."
- "FortiOS's stability could be better."
What is most valuable?
FortiOS's best features are its function as an internet gateway and how easy it is to manage.
What needs improvement?
FortiOS's interface and monitoring could be improved.
For how long have I used the solution?
I've been working with FortiOS for three years.
What do I think about the stability of the solution?
FortiOS's stability could be better.
How was the initial setup?
The initial setup was simple.
What's my experience with pricing, setup cost, and licensing?
FortiOS is affordable, but its price could be lower.
What other advice do I have?
I would give FortiOS a rating of nine out of ten.
Which deployment model are you using for this solution?
On-premises
Disclosure: My company has a business relationship with this vendor other than being a customer. Partner
Solutions Consultant at a manufacturing company with 11-50 employees
Useful monitoring, beneficial SSL inspection, and IDS/IPS functionality
Pros and Cons
- "The most valuable features of Fortinet FortiOS are the SD-WAN, SSL inspection, and IDS/IPS functions."
- "The best solution in the category including the price in Thailand is Fortinet FortiOS."
- "Fortinet FortiOS can improve the monitoring function, it could be more accurate, easy to use, and understandable."
What is most valuable?
The most valuable features of Fortinet FortiOS are the SD-WAN, SSL inspection, and IDS/IPS functions.
What needs improvement?
Fortinet FortiOS can improve the monitoring function, it could be more accurate, easy to use, and understandable.
For how long have I used the solution?
I have been using Fortinet FortiOS for approximately two years.
What do I think about the stability of the solution?
The stability of Fortinet FortiOS can improve.
I rate the stability of Fortinet FortiOS a nine out of ten.
What do I think about the scalability of the solution?
My colleagues like the FortiOS because it is simple, and the easiest to understand. We have approximately 300 users that are using this solution.
How are customer service and support?
I have used the support from Fortinet FortiOS. Some of the engineers who take our tickets are good but others take unnecessary steps for verification before addressing the problem.
I rate the support from Fortinet FortiOS a four out of five.
How was the initial setup?
The initial setup of Fortinet FortiOS is simple.
What's my experience with pricing, setup cost, and licensing?
The best solution in the category including the price in Thailand is Fortinet FortiOS.
Which other solutions did I evaluate?
When comparing Fortinet, Forcepoint, and Sophos, Fortinet FortiOS is the best solution.
What other advice do I have?
I rate Fortinet FortiOS an eight out of ten.
Which deployment model are you using for this solution?
On-premises
Disclosure: My company has a business relationship with this vendor other than being a customer. Partner
Director at REDCO
Easy setup and configuration, with a good interface, responsive support, and extensive configuration options
Pros and Cons
- "The solution is very easy to configure and has a good interface, plus it offers more configuration options than other vendors."
- "I would like to see fewer bugs. If you use the box with its basic features, the solution is straightforward and stable, but you can run into bugs when using newer features or in more complex use cases. They included a DNS filter as a new feature, and I had issues that required raising a ticket with customer support."
What is our primary use case?
We use the solution as a firewall, and in conjunction with Fortinet FortiMail.
What is most valuable?
The solution is very easy to configure and has a good interface, plus it offers more configuration options than other vendors.
What needs improvement?
I would like to see fewer bugs. If you use the box with its basic features, the solution is straightforward and stable, but you can run into bugs when using newer features or in more complex use cases. They included a DNS filter as a new feature, and I had issues that required raising a ticket with customer support.
For how long have I used the solution?
I've been using the solution for between 10 and 12 years.
What do I think about the stability of the solution?
The solution is very stable. There are occasional bugs, but support is very quick and helpful in resolving these issues.
How was the initial setup?
The initial setup was easy.
What's my experience with pricing, setup cost, and licensing?
A medium 100 or 200 Series box costs around $3000, and the software cost is around 55% of the hardware cost.
What other advice do I have?
Depending on the situation, performance issues may require changing out the box.
Disclosure: My company has a business relationship with this vendor other than being a customer. Reseller
Director, IT Infrastructure Department at Zemen Bank S.C.
Excellent management and security features
Pros and Cons
- "FortiOS' most valuable features are management, security, and easy updates with no downtime."
- "FortiOS's bandwidth and interface could be improved."
What is most valuable?
FortiOS' most valuable features are management, security, and easy updates with no downtime.
What needs improvement?
FortiOS's bandwidth and interface could be improved. In the next release, Fortinet should include an option to disable users.
For how long have I used the solution?
I've been working with Fortinet FortiOS for five years.
What do I think about the stability of the solution?
We've been using FortiOS for five years and have had no problems with stability during that time.
What do I think about the scalability of the solution?
FortiOS is scalable.
How are customer service and support?
Fortinet's technical support is good and provides good solutions for us.
How would you rate customer service and support?
Positive
Which solution did I use previously and why did I switch?
Previously, I used Cisco ASA Firewall.
How was the initial setup?
The initial setup was very simple and was completed within a week.
What about the implementation team?
The implementation was done by a reseller and a technical team from our side.
What was our ROI?
On the technical side, we have received a good ROI from FortiOS as its scalability and management are good.
What's my experience with pricing, setup cost, and licensing?
The licensing for FortiOS is good, with a security license included when we update the main license.
What other advice do I have?
I would rate FortiOS eight out of ten.
Which deployment model are you using for this solution?
On-premises
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Network Engineer at Pyramid IT Solutions Pvt Ltd
Security solution that is user friendly and offers comprehensive integrations
Pros and Cons
- "This is a user friendly solution and offers comprehensive integrations."
- "The reporting for this solution could be improved. It could also be more stable and offer better pricing."
What is most valuable?
This is a user friendly solution and offers comprehensive integrations.
What needs improvement?
The reporting for this solution could be improved. It could also be more stable and offer better pricing.
For how long have I used the solution?
I have been using this solution for five years.
How are customer service and support?
The customer support for this solution is good and user-friendly.
How would you rate customer service and support?
Positive
How was the initial setup?
Installation takes two minutes.
What's my experience with pricing, setup cost, and licensing?
If you are able to afford it, I would recommend Fortinet.
Which deployment model are you using for this solution?
On-premises
Disclosure: My company has a business relationship with this vendor other than being a customer.
It has optimized the WAN environment for connecting users to the application
Pros and Cons
- "Fortinet has optimized the WAN environment for connecting users to the application."
- "We switched to Fortinet because it's easy to use and deploy, and in recent years, Fortinet has worked to combine the SD-WAN and next-gen firewall into one device, improving the ease of use."
- "Fortinet's central management needs to be improved. FortiManager's technical tool provider ability should manage all Fortinet security products. Right now, FortiManager only manages the configuration of FortiGate."
What is our primary use case?
Fortinet's SD-WAN connects the user to the application or app server on-prem or the cloud.
How has it helped my organization?
Fortinet has optimized the WAN environment for connecting users to the application.
What needs improvement?
Fortinet's central management needs to be improved. FortiManager's technical tool provider ability should manage all Fortinet security products. Right now, FortiManager only manages the configuration of FortiGate.
For how long have I used the solution?
I've been using Fortinet for about five years.
What do I think about the stability of the solution?
Fortinet's performance is stable.
What do I think about the scalability of the solution?
Fortinet is scalable. We can increase the scalability in the help center. We have 500 to 600 users now, but we plan to grow to 700 or 800 users in the next two years.
How are customer service and support?
I'm satisfied with Fortinet support.
Which solution did I use previously and why did I switch?
We switched to Fortinet because it's easy to use and deploy. In recent years, Fortinet has worked to combine the SD-WAN and next-gen firewall into one device, improving the ease of use.
How was the initial setup?
Setting up Fortinet is straightforward. It takes about 10 to 15 minutes to deploy. We have a team of five engineers to deploy, maintain, and manage Fortinet.
What about the implementation team?
We deployed Fortinet ourselves.
What other advice do I have?
I rate FortiOS nine out of 10.
Which deployment model are you using for this solution?
Hybrid Cloud
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Buyer's Guide
Download our free Fortinet FortiOS Report and get advice and tips from experienced pros
sharing their opinions.
Updated: August 2026
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Buyer's Guide
Download our free Fortinet FortiOS Report and get advice and tips from experienced pros
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