I upgraded a HA cluster over the weekend of Fortinet 600D firewalls. I was upgrading in three steps as below:
Step 1 - Upgrade from 5.4.11 to 5.6.11
Step 2 - Upgrade from 5.6.11 to 6.0.9
Step 3 - Upgrade from 6.0.9 to 6.2.4
The first two steps went very smoothly, but the final step involved a messy reboot after both nodes were upgraded. During the cluster reboot, I lost all connectivity and was contemplating getting remote hands involved. After around 10 minutes, the device thankfully came back online.
Is this normal? Should I be wary of using version 6.2.4?
On saturday, i upg from 6.2.3 to 6.2.4 and i had a lot of problems with DNS after upgrade. My company went down about 2 hours trying troubleshotting the problem without success and we rollback to 6.2.3.
The Fortinet Security Fabric brings together the concepts of convergence and consolidation to provide comprehensive cybersecurity protection for all users, devices, and applications and across all network edges.