New Post: [Solved] Loading Certificate into WSUS under Windows 2012 R2

I have also get the same message "Failed to load the certificate. Check the file." when problem importing a selfsigned OpenSSL cert generated Cert from a internal RootCa. OS is Windows Server 2012 R2 with the WSUS role installed together with WPP. I was checking all cert connected and it looks ok. The screenshot shows WPPs own created cert and the other one that cant be loaded.