User Reviews of Fortinet FortiOS

Updated January 2026

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Fortinet FortiOS review

Mitul-Shah
Mitul-Shah
Associate Director IT Operations at a financial services firm with 11-50 employees
Single-pane management has simplified firewall control and has improved risk...
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...
Fortinet FortiOS review

Mitku Bitew
Mitku Bitew
Director, IT Infrastructure Department at a financial services firm with 201-500 employees
Seamless upgrades ensure uninterrupted service
In some specific products, Fortinet FortiOS faces memory issues, which can lead to unexpected downtimes. This is particularly true for a version like 11 OE, which has a problem at the software level concerning memory, causing it to get stuck in production. Support quality and eagerness to resolve issues, such as the memory issues, could...

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