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FortiGate 20C ADSL A End of Life

Understand when support ends and how to future-proof your FortiGate 20C ADSL A End of Life deployment.

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The FortiGate-20C-ADSL-A has reached its end of life. As a compact gateway with integrated ADSL connectivity, it was commonly used in small offices and remote locations. Organizations should modernize these edge points to ensure reliable connectivity, security, and continued vendor support.

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-20C-ADSL-A Date & Status

Here’s what you need to know about FortiGate-20C-ADSL-A lifecycle status.

  • End of Life (EOL): 5/8/23
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FortiGate-20C-ADSL-A Replacement

Replacing the FortiGate-20C-ADSL-A isn’t just about updating hardware—it’s about ensuring small and remote sites meet modern WAN, security, and cloud requirements.

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Role of the FortiGate-20C-ADSL-A:

A small-office gateway combining basic NGFW features with ADSL connectivity for simple WAN access and perimeter protection.

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Evolving Traffic Patterns:

Cloud applications, remote access, and encrypted traffic have increased dramatically, placing higher demands on throughput and inspection.

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Modern Demands:

Modern small-site devices must support improved VPN performance, cloud-managed policies, multi-WAN options, and stronger threat prevention.

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Strategic Upgrade:

Select a compact, cloud-manageable platform that supports modern WAN technologies, enhanced security services, and simplified provisioning for low-overhead operations.

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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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