FortiGuard Default DNS Server Unreachable

Last updated: 05.06.2026 at 15:30 CEST In the past few days, multiple of our resellers have reported issues where DNS resolution using the default Fortinet FortiGuard DNS servers (96.45.45.45 & 96.45.46.46) is not functioning as expected with DNS over TLS (DoT) on TCP/853.

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FortiGuard Servers are not reachable

Last Update 24.06.2025 Update – 30. Oktober 2023: We received feedback from our partners that the issue probably occurred again today. Fortinet confirmed the issue, here is their response: Few cases have been reported to us with this issue during the weekend, this seems to be issue with Fortiguard anycast…

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FortiGuard DDNS und Austausch der FortiGate

Die Fortigates bieten startend mit FortiOS v5.0 einen Fortinet-eigenen, kostenlosen DynDNS-Dienst an. DynDNS leistet immer dann wertvolle Dienste, wenn die Fortigate über ihren Provider keine fixe IP-Adresse bekommt, man aber dennoch die Fortigate vom Internet her direkt ansprechen will – z.B. für ein VPN oder eine IP Weiterleitung auf einen…

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