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LX0-104 · Question #205

An administrator has just configured an OpenVPN client. Upon starting the service, the following message is displayed: TLS Error: TLS key negotiation failed to occur within 60 seconds Which of the fol

The correct answer is A. The client was unable to establish a network connection with the server.. The OpenVPN 'TLS key negotiation failed' error typically indicates that the client could not establish a fundamental network connection with the server before the TLS handshake could even begin.

Networking Fundamentals

Question

An administrator has just configured an OpenVPN client. Upon starting the service, the following message is displayed: TLS Error: TLS key negotiation failed to occur within 60 seconds Which of the following statements is true?

Options

  • AThe client was unable to establish a network connection with the server.
  • BThe client was able to establish a network connection with the server, however TLS key negotiation
  • CThe client was able to establish a network connection with the server, however TLS and SSL security
  • DThe client was able to establish a network connection with the server, however TLS key negotiation

How the community answered

(29 responses)
  • A
    79% (23)
  • B
    7% (2)
  • C
    3% (1)
  • D
    10% (3)

Why each option

The OpenVPN 'TLS key negotiation failed' error typically indicates that the client could not establish a fundamental network connection with the server before the TLS handshake could even begin.

AThe client was unable to establish a network connection with the server.Correct

The 'TLS Error: TLS key negotiation failed to occur within 60 seconds' message strongly suggests that the client could not even reach the server to initiate the TLS handshake process. This timeout usually points to underlying network connectivity issues like firewalls, incorrect server address, or routing problems preventing initial communication, rather than a successful connection with a subsequent TLS failure.

BThe client was able to establish a network connection with the server, however TLS key negotiation

This option is incorrect because if a network connection was established, OpenVPN would typically report more specific TLS handshake errors (e.g., certificate validation failure) rather than a timeout before negotiation could occur.

CThe client was able to establish a network connection with the server, however TLS and SSL security

This option implies a successful network connection but a failure in both TLS and SSL security. The error is a timeout for negotiation to start, not a failure of the negotiation itself after a connection.

DThe client was able to establish a network connection with the server, however TLS key negotiation

This option is incorrect as it states a network connection was established, which contradicts the general nature of a negotiation timeout that implies the negotiation could not even commence due to lack of initial connectivity.

Concept tested: OpenVPN network connection errors

Source: https://openvpn.net/faq/openvpn-tls-error-tls-key-negotiation-failed-to-occur-within-60-seconds/

Topics

#OpenVPN#TLS error#network connectivity#troubleshooting

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