IPSEC VPN DISCONNECTS AFTER UPGRADING TO VERSION 7.4.8 Build 2795 (Mature)
Hello,
I have an account with a FortiGate 200F, which was running the 7.2.10 build 1706 (Mature) version. In this version, it had a VPN that, in phase 1, contained the following settings.
Encryption
Since the other end is a pfSense Community Edition 2.7.2, and this firewall does not normally allow the AES256 and SHA512 methods to be used, the connection was stable and working with that configuration.
When I upgrade my Fortinet Firewall to version 7.4.8 build2795 (Mature), the VPN drops and does not even raise phase 1. The error it gives me is an inbound connection failure, but when validating the logs of the two firewalls it indicates that "error no acceptable ENCRYPTION_ALGORITHM found" (this appears in Pfsense) and the algorithms were modified in one of the VPNs that presented the error but none of them work, as well as the PSK was changed on both sides, confirming its accuracy.
If anyone has a similar error and has been able to solve it, I'm open to any ideas, Pfsense
