I have little to no experience dealing with certificates. The most I've done with them is "ordered" a few from the vendor. Didn't actually do any of the install. I get these SChannel 36887 errors 2-3 times per minute on an exchange 2013 server running server 2012. Where do I begin? There is a certificate utility i've opened and it shows our certificate for the server expiring in 2020. What else can I do with this?