How to fix “DNS bad key. [DNS_ERROR_RCODE_BADKEY (0x2339)]” – Error Code 9017


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Error Code 9017

Error code Error Code 9017 is a common Windows issue that typically arises from “DNS bad key. [DNS_ERROR_RCODE_BADKEY (0x2339)]”.

Overview

In this article, we’ll focus on resolving the issue described as: “DNS bad key. [DNS_ERROR_RCODE_BADKEY (0x2339)]”. This error, identified by the error code Error Code 9017, can impede your system’s performance, and here’s how you can fix it.

Identifying the Problem

Error Code 9017 arises when the Domain Name System (DNS) server responsible for resolving domain names to IP addresses encounters a problem verifying the digital signature of a DNS Security (DNSSEC) record. This can occur when:
– The DNS server’s trust anchor is outdated or missing.
– The DNSSEC record is malformed or corrupted.
– There’s a problem with the DNS server’s configuration.

Common Fixes

1. Update DNS Server Trust Anchors

  • Open Command Prompt as administrator and run:
    netsh winsock reset catalog
  • Restart your computer.

2. Disable DNSSEC Validation

Note: Disabling DNSSEC validation reduces security but can resolve the issue.
– Go to Control Panel > Network and Internet > Network and Sharing Center.
– Click on your active network connection.
– Select Properties.
– Highlight Internet Protocol Version 4 (TCP/IPv4).
– Click Properties.
– Under DNS, click Advanced.
– Uncheck the box for “Validate signatures (DNSSEC)”.
– Click OK to save changes.

3. Flush DNS Cache

  • Open Command Prompt as administrator and run:
    ipconfig /flushdns

Advanced Troubleshooting

1. Check DNS Server Configuration

  • Verify that the DNS servers configured in your network settings are correct.
  • Contact your ISP to ensure they are using valid DNSSEC keys.

2. Update Network Drivers

  • Outdated network drivers can cause connectivity issues.
  • Go to Device Manager and expand Network adapters.
  • Right-click your network adapter and select Update Driver.

3. Use Alternate DNS Servers

  • Try using public DNS servers such as Google DNS (8.8.8.8) or Cloudflare DNS (1.1.1.1).
  • In your network settings, change the preferred and alternate DNS servers.

Conclusion

By applying the solutions outlined above, you should be able to resolve Error Code 9017 effectively. If the issue persists, contact your ISP or a qualified technician for further assistance. Regularly updating your system, including DNS server trust anchors, network drivers, and firmware, can help prevent this error in the future.