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FortiGate 400D LENC End of Life

Understand when support ends and how to future-proof your FortiGate 400D LENC End of Life deployment.

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The FortiGate-400D LENC has reached end of life and enterprises relying on this appliance should evaluate next-generation firewall and edge options. Proactive replacement planning preserves intrusion prevention, inspection capabilities, and the ability to enforce modern security policies across the network edge.

What this means for your organization

  • A chance to modernize your security posture and prepare for future growth.
  • Opportunity to benefit from improved performance, efficiency, and protection.
  • Align IT infrastructure with compliance, scalability, and long-term ROI.
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FortiGate-400D-LENC Date & Status

Here’s what you need to know about FortiGate-400D-LENC lifecycle status.

  • End of Life (EOL): 5/8/23
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FortiGate-400D LENC Replacement

Replacing the FortiGate-400D LENC is about strengthening edge security, inspection performance, and lifecycle management for modern network environments.

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Role of the FortiGate-400D LENC:

A high-throughput perimeter and edge firewall securing north-south traffic and enforcing core security services.

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Evolving Traffic Patterns:

Encrypted traffic, cloud services, SaaS adoption, and remote access have expanded inspection and throughput needs.

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Modern Demands:

Deep SSL/TLS inspection, integrated SD-WAN, threat intelligence, and centralized management are essential for edge environments.

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Strategic Upgrade:

Move to a next-generation edge platform combining advanced threat protection, secure SD-WAN, and scalable inspection with centralized policy management.

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Understanding Fortinet's EOL Policy | End of Life Risks

Every Fortinet product follows a defined lifecycle, moving through the following stages:

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  • General Availability (GA): The product is released and actively sold and supported.
  • End of Sale (EOS): The device is no longer available for purchase from Fortinet or authorized partners.
  • End of Life (EOL): Feature development and most firmware updates stop.
  • End of Support (EOSL): Fortinet ends all official support, security patches, and RMA services.

Why This Matters for Your Business

Understanding where your hardware sits in this lifecycle helps you:

  • Plan timely upgrades before critical support ends.
  • Ensure security compliance and avoid audit failures.
  • Maintain operational continuity with fully supported hardware.
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Risks of Continuing to Use EOL Hardware

When a firewall or security appliance reaches End of Life, the risks of keeping it in production increase dramatically

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No Security Patches

Outdated devices won’t receive updates, leaving your network exposed to new vulnerabilities.

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Lack of Vendor Support

Once support ends, there’s no access to Fortinet’s technical resources or RMA services.

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Compliance Failures

Auditors may flag unsupported hardware as a violation of security and industry standards.

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Operational Instability

Legacy devices may struggle with modern workloads, encrypted traffic, and cloud integrations.

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How Aseva Helps with Fortinet EOL

Here’s how Aseva ensures a smooth and secure FortiGate lifecycle transition.

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Lifecycle Planning:

Track Fortinet GA → EOS → EOL → EOSL.

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Seamless Migration:

Dedicated engineers ensure minimal downtime.

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Future-Proof Security:

Replace with next-gen models aligned to your needs.

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Why Choose Aseva for Fortinet End of Life Support?

Choosing the right partner is critical. With Aseva, you gain a trusted advisor with deep expertise in Fortinet and broader cybersecurity lifecycle management. We help reduce risk, ensure compliance, and maximize ROI on your IT investments.

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