References > Troubleshooting > Troubleshooting AppInsight for IIS > Polling Fails Due to a Missing Certificate

Polling fails due to a missing certificate

Issue: You receive an error similar to the following: The SSL connection cannot be established.

Cause: A PowerShell listener was created but its certificate is missing.

Resolution: Verify that the service on the remote host is properly configured to listen for HTTPS requests. Manually remove the existing PowerShell listener and re-run the IIS configuration wizard. This process creates a new listener along with the appropriate certificate needed.