FortiGate 100E VPN Error: "Phase 2 Mismatch" After Firmware Update to v6.4.5
I recently updated my FortiGate 100E to firmware version v6.4.5. After the update, I've been encountering a persistent issue with my site-to-site VPN. Every time I try to establish a connection, it fails, and I get a "Phase 2 Mismatch" error in the logs.
Before this update, my VPN connection was stable, and there were no issues. The only recent change I made, besides the firmware update, was adding a few firewall policies, but none that should affect the VPN, as far as I can tell. I've double-checked my VPN settings and phase 2 configurations on both ends, and they match.
Has anyone else faced a similar issue after updating to v6.4.5? Any guidance on troubleshooting this would be greatly appreciated.
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