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Transport Failed to Connect to Server

Symptom​

When verifying Notifications settings in Netwrix Password Reset, the following error is prompted:

Test failed: The transport failed to connect to the server.
Exception has been thrown by the target of an invocation.

Causes​

  • TLS 1.2 is misconfigured in the Netwrix server.
  • The implicit SSL connection mode is enabled.
  • SMTP settings are misconfigured.
  • The monitoring plan is corrupted.

Resolution​

  1. Review the TLS protocol versions enabled in your environment − refer to the following article for additional information: Сonnection Issue when TLS 1.2 Is Required.
  2. Uncheck the Use the Implicit SSL connection mode checkbox in the Notifications tab in Netwrix Password Reset (PEN), and verify the SMTP settings.
  3. Verify the SMTP settings − make sure the specified port corresponds to the server port. Learn more in How to set up a multifunction device or application to send email using Microsoft 365 or Office 365 ⸱ Microsoft 🫝.
  4. Review the list of ports and protocols required for Netwrix Password Reset (PEN) to operate − refer to the following article for additional information: Tools − Netwrix Password Reset ⸱ v10.6.
  5. Recreate your Netwrix Password Reset (PEN) monitoring plan − it is required to perform the setup manually as there's no option to copy the existing plan automatically.