Resolving FortiClient 6.4 Mac Download Connectivity Issues

The latest version of FortiClient, specifically FortiClient 6.4, has been causing some users to experience connectivity issues when downloading and connecting to their VPN on Mac devices. The issue is characterized by a brief connection establishment followed by an unexpected disconnection, leaving the user unable to access the VPN.

When attempting to troubleshoot this problem, some users have reported encountering a specific error message: 'sslConnGotoNextState:307 error (last state: 1, closeOp: 0) destroy sconn 0x7f9fc8e300, connSize=0.' This error code suggests that there may be an issue with the SSL/TLS handshake or connection establishment process.

In some cases, users have reported being able to connect to their VPN using fake login credentials, which can indicate a problem with the authentication mechanism. However, when using correct user and password combinations, no messages or errors are generated, further complicating troubleshooting efforts.

The fact that the VPN shows 'Connecting' briefly before disconnecting suggests that there may be an issue with the connection establishment process on the Mac device. This is particularly concerning given that the same FortiClient version has been successfully used for remote connections on Windows devices.

To resolve this issue, it's essential to investigate and troubleshoot the SSL/TLS handshake and connection establishment processes on the Mac device. Some potential solutions include:

* Checking and updating the FortiClient software to ensure it is running the latest version.

* Verifying that the correct user and password combinations are being used for authentication.

* Investigating any firewall or network configuration issues that may be preventing a successful connection.

In conclusion, the FortiClient 6.4 Mac download connectivity issue is a frustrating problem that can be challenging to troubleshoot. By understanding the error messages and potential causes, users and administrators can take steps to resolve this issue and ensure secure remote access to their VPN using FortiClient on Mac devices.

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