I am trying to get a self signed SSL cert bound to port 8080 for WCF unit testing on my Windows 2008 R2 development box. I reserved the url without error: netsh http add urlacl url=https://+:8080/ user=EVERYONE Unfortunately, when I try to add the SSL binding for my certificate I get a wacky error. "netsh http add sslcert ipport=0.0.0.0:8080 certhash=BE3102FAF81366C47B4E284D07E163128676DE77 appid={283647f3-ef12-4f46-8aeb-d59fc072dcda}" "SSL Certificate add failed, Error: 1312 A specified logon session does not exist. It may already have been terminated." Note, previously I had bound a diff cert and decided to unbind it and go with a new self signed cert. The first cert seemed to bind without error. Cert1 generated from these instructions: http://blogs.msdn.com/b/james_osbornes_blog/archive/2010/12/10/selfhosting-a-wcf-service-over-https.aspx Cert2 generated from these instructions: http://msdn.microsoft.com/en-us/library/ff648498.aspx Anyone else ever run into this?