Stability is high. I would rate the stability an eight out of ten. 

This is reliable, stable, and problem-free. There are no bugs or glitches. It doesn't crash or freeze. I'd rate the product five out of five in terms of stability.

The solution is stable. There are no bugs or glitches. It doesn't crash or freeze. The performance is reliable 

We've been happy with the stability. It's been good so far. There are no bugs or glitches. It doesn't crash.

The stability is good. There are no bugs or glitches. It doesn't crash or freeze. It is reliable. In terms of hardware. We are in a cycle right now to handle hardware replacement. We've been using the hardware for seven years now. 

We don't have any instability issues.

The solution is stable. There are no bugs or glitches. It doesn't crash or freeze. 

It's stable as a product. However, SD-WAN has some issues. The route policies and how you prioritize traffic are the areas of concern for us.

I'd rate the solution seven out of ten in terms of how stable it is. 

The stability is good. 

It's running in many places and in different organizations. There's a huge market.

The stability of Fortinet FortiOS depends on the operation being done. If we are using the basic functions I would rate the stability of Fortinet FortiOS a five out of five. If we are using the advanced functionality I would rate the stability a three out of five. Overall the solution is stable.

The product is stable.

The solution has proven to be stable and reliable. The performance is good. There are no bugs or glitches. It doesn't crash or freeze. 

The solution is stable and I rate it an eight out of ten. 

The stability of Fortinet FortiOS is good.

Sometimes it is unstable. However, they'll easily fix the issue. We get upgrades and updates. If there is even any vulnerability or malware, we'll get it fixed immediately. They give good responses to the customers.

While there are bugs, sometimes the development team is on top of it and fixes everything fast. They'll send a patch in the next update.

The solution is stable. In seven years of use, I've only encountered two or three occasions where a bug affected the firewall's behavior. 

I rate stability an eight out of ten. 

The solution is stable.

The solution is stable. We’ve never had any issues with the product. It’s reliable. There are no bugs or glitches.

Fortinet FortiOS is a stable product.

The solution is very stable.

The stability of Fortinet FortiOS has been good, I have not had any issues at this point.

The solution is stable.

The solution is stable. We have no issues in that regard. There aren't bugs and glitches. It doesn't crash. It's reliable.

The stability is excellent. 

Fortinet FortiOS is stable.

It is very much stable.

The stability of Fortinet meets our requirements and I'm satisfied with it.

The stability of Fortinet FortiOS initial setup is simple and it is user-friendly. To do the whole process of transferring the firewall configurations and updates took approximately one day. 

Fortinet FortiOS is stable. However, last month we had an issue with a released patch. We had to receive another update to fix the firewall issue consuming all of the resources. The patches should be tested more before going into circulation.

I work with many products but this is the most stable OS I have seen. With Cisco, for example, if you do an upgrade, it's not guaranteed that the production will be stable. The upgraded release will release many bugs. FortiOS isn't like this. 

There is something called Fortinet Fabric that helps you to enforce your security by connecting all of your products with FortiGate. For example, if you install FortiClient on your PC it will help you use the VPN and the antivirus. When there is an issue, if you have 1,000 users with FortiClient will send a message to FortiGate. I have many projects and I use FortiManager to manage them. It helps my team minimize implementation time.

FortiOS is one of the most stable solutions.

The solution is stable.

I rate the solution's stability as seven.

The solution is very stable. There are occasional bugs, but support is very quick and helpful in resolving these issues.

The product is pretty stable.

Fortinet FortiOS is a stable solution and it has high performance.

I think it's a stable solution.

The stability of the solution is very good.

Fortinet is a pretty stable product. 

We've been using FortiOS for five years and have had no problems with stability during that time.

My impression is the solution is very stable.

The solution is moderately stable. I would rate the stability a seven out of ten. 

I think the product is a pretty stable solution. I did have some cases with the webserver where the appliance actually crashed. Later I research about the issue and I found out that it was actually a bug in the latest version. I imagine that because they know they will issue a fix if they have not already.

We had some issues with the stability of FortiOS, but I do not think it was because of Fortinet. It was because of how the integrator handled the configurations. The partner that implemented it originally did not do it optimally. We ended up having to change the partner in order to have it done correctly.  

The solution is reliable and stable.

Excluding the login performance — which we would have issues with in the past that made us have to turn off the feature in order to examine the infrastructure — every other feature and functionality has proven to be stable. We have also experienced some issues with performance with filtering traffic but it was on the appliance and because it was just a basic setup.  The real problem was the configuration and had we been more familiar at the time, we would have done a better job with it. So it was not the product that was unstable, it was our application of it.

The solution seems very stable once you have everything up and running. 

This solution is very stable. It is more stable than SonicWall. The biggest difference is the stability on the VPN site to site, and on the DPI SSL for the HTTPS communication.

The program is very stable.

Fortinet FortiOS is highly stable.

So far, the solution has been stable. I have not had any complaints from the customer.

The solution is stable and we haven't received any complaints.

The stability is good. 

FortiOS's stability could be better.

The stability of Fortinet FortiOS can improve.

I rate the stability of Fortinet FortiOS a nine out of ten.

Fortinet's performance is stable.

My impression of the stability of the solution is good just one support case opened to fortinet, in next firewall update I will choose again fortinet

Fortinet FortiOS is highly stable.

In my experience the program is very stable.

Fortinet FortiOS is stable.

It is stable.

It is quite stable. It is easy for me to integrate interfaces. 

in 10 years, we have had little to no issues with the functionality, stability of the product from my standpoint has been very stable, preventative maintenance schedules, and keeping up with the latest information on the product is key.

The solution is very stable, however, in rare instances where there happens to be a bug or glitch, the good thing about them is that they release fixes whenever there's a bug on the OS. Users will need to upgrade their OS if this is the case in order to get the fix. It's great that they deal with the bugs head-on and put out fixes efficiently.