Last Update 22.10.2026 Update – 11. September 2026: We received feedback from our partners indicating that the issue has recurred. Fortinet has confirmed the issue and provided the following response:
FortiGuard Servers are not reachable
CheatSheet – FortiOS v7.6
Right at the start of the year, we’re also releasing the new cheat sheet for FortiOS version 7.6! If you have an idea for the cheat sheet, please let us know in the comments.We wish you good luck with troubleshooting.
FortiGate Cloud-Logging Connection Unreachable
Last Update: 06.08.2026 Update 28. February 2025:Make sure that FortiGate is running the latest firmware if using Free Subscription with FortiGate Cloud. Starting February 28, 2025, a FortiGate without an active FortiGate Cloud subscription is required to upgrade to the latest firmware patch within 7 days of a new GA patch release, or FortiGate Cloud…
FortiGate BGP Troubleshooting Guide
When configuring the Border Gateway Protocol (BGP) Router, you may encounter issues where dynamic routing doesn’t work as expected due to configuration problems. This article provides a handy set of troubleshooting commands to address these issues effectively.
Webserver are Suddenly not Reachable Anymore due to TLS 1.3 Hybridized Kyber Support
In the last days we have had several support cases that suspiciously all had the same error description: many web servers can no longer be reached with the Chrome or Edge browser. In our cases typically the Webfilter feature from one of our firewalls has been involved. Right now we…
FortiGate Memory and CPU Troubleshooting
Last Updated: 29. January 2025 From time to time we face performance problems on FortiGate units in our daily support life. Most often the impacts of performance problems on the FortiGate are not typical. Or let’s say “not as an admin that is not familiar with FortiGates would expect”. The…
CheatSheet – FortiOS v7.4
We are happy to present you the new cheat sheet for FortiOS version 7.4.If you have an idea for the cheat sheet, please let us know in the comments. (Updated to v1.2, 17.02.2025) We wish you good luck with troubleshooting.
FortiGate throughput troubleshooting
Limited throughput on network devices is a common problem. We handle a lot of cases with thtroughput issues and have written a guide on how we recommend to start troubleshooting in such cases.
FortiGate Registration via WebUI: Reseller field is empty
In the last two weeks we received more and more reports about the problem that the reseller list remains empty when registering a FortiGate via WebUI, even if the correct country (Switzerland in our case) is selected. The problem was also reported to us with the Country / Region field,…
Swisscom Centro Business: Incoming HTTPS-Sessions and SSLVPN stop working
In the last two weeks we have received many support requests because of non-functioning SSL connections from our Fortinet, Palo Alto Networks and Watchguard customers. Incoming SSL connections on port tcp/443 suddenly stop working. These can be SSLVPNs, Global Protect connections, port forwardings (VIPs, Destination NAT) for internal web servers…