Skip to main content

IIS Manager Error: A specified logon session does not exist. It may already have been terminated.

Last week I was configuring a TFS 2012 server to support https. I installed a wildcard SSL certificate on our Windows 2008 Server trying to install a wildcard SSL cert.  I launched the Certificate Snap-in inside MMC and placed the SSL certificate into the local computer repository without problems.

But when I opened the IIS manager to use this certificate, the problems started. I wanted to enable SSL for the TFS website, so I selected the web site and choose the Bindings option from the action menu.

image

The site bindings window was loaded. I clicked Add… to add a new binding and choose https from the Type dropdown.

image

But when I tried to select the certificate from the SSL certificate dropdown, I got the following error message:

A specified logon session does not exist. It may already have been terminated. (Exception from HRESULT: 0x80070520)

I could click OK but the binding didn’t work.

On the IIS forums I found the following post mentioning two possible solutions:

  • Deleting the certificate and reinstalling it via mmc certificate snap-in
  • Installing the certificate with ‘Mark exportable’ is true

I already used the first option, so I tried the second solution and it worked!

Remark: In the same post someone mentions that making your private key exportable is a security risk. So if someone has a better solution, feel free to let me know.

Popular posts from this blog

DevToys–A swiss army knife for developers

As a developer there are a lot of small tasks you need to do as part of your coding, debugging and testing activities.  DevToys is an offline windows app that tries to help you with these tasks. Instead of using different websites you get a fully offline experience offering help for a large list of tasks. Many tools are available. Here is the current list: Converters JSON <> YAML Timestamp Number Base Cron Parser Encoders / Decoders HTML URL Base64 Text & Image GZip JWT Decoder Formatters JSON SQL XML Generators Hash (MD5, SHA1, SHA256, SHA512) UUID 1 and 4 Lorem Ipsum Checksum Text Escape / Unescape Inspector & Case Converter Regex Tester Text Comparer XML Validator Markdown Preview Graphic Color B

Help! I accidently enabled HSTS–on localhost

I ran into an issue after accidently enabling HSTS for a website on localhost. This was not an issue for the original website that was running in IIS and had a certificate configured. But when I tried to run an Angular app a little bit later on http://localhost:4200 the browser redirected me immediately to https://localhost . Whoops! That was not what I wanted in this case. To fix it, you need to go the network settings of your browser, there are available at: chrome://net-internals/#hsts edge://net-internals/#hsts brave://net-internals/#hsts Enter ‘localhost’ in the domain textbox under the Delete domain security policies section and hit Delete . That should do the trick…

Azure DevOps/ GitHub emoji

I’m really bad at remembering emoji’s. So here is cheat sheet with all emoji’s that can be used in tools that support the github emoji markdown markup: All credits go to rcaviers who created this list.