When you manually import a Lenovo XClarity Administrator certificate (PEM) file into Lenovo XClarity Integrator, the import might failed with the following message: Fail to upload certificate file. This is an known problem with Internet Explorer 10.
Procedure
Upgrade Internet Explorer to a later version or use another web browser.
When importing the certificate, select Paste certificate in PEM format. Do not use Add from a file (PEM) to add the certificate.