CANNOT send message to RSyslog Server in SSL/TLS Encryption

[taminhtoan2601]

Hello,

I am using a Windows RSyslog Agent with a valid license key. When attempting to test the "Send Syslog Test Message" feature with the "Enable SSL/TLS Encryption" option enabled, I provided the correct certificates in the configuration:

Common CA: This contains two certificates (Root and Intermediate) combined into a single file named "combined-ca.pem" because our server uses a three-level certificate chain (Root, Intermediate, and Entity). Certificate: The client certificate in PEM format. Key: The private key associated with the client certificate. However, I encountered the following error: "Exception while sending Syslog Message: Length cannot be less than zero. Parameter name: length."

This is a simple test involving mutual authentication. Our Syslog server successfully communicates with other Linux clients using this authentication option, but we are encountering this issue specifically with the Windows RSyslog Agent.

Could someone have an idea for this error ... ? Thank you very much. Toan.