Upgrading Fortigate 81E from FortiOS 5.6.12 to 6.2.9
I have an Fortigate 81E in my office, no VDOM on it, and i want to upgrade it from the actual version 5.6.12 (du to support End at 04.10.21) --> to 6.2.9.
The recomanded path for that is 5.6.12 --> 6.0.12 --> 6.2.9.
As anyone doing this path upgrade, and can tell me if you have seeing somes problème or not ? (in case i have take a backup of settings and downloding manually a backup of 5.6.12 so i think i can restore it by TFTP).
I would just like to have an opinion from someone who has already done an upgrade similar to the one i planned thank you.
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