When attempting to log in to the Application Server, an error is thrown. The following message is present in the logs:
"[System.Security.Cryptography.CryptographicException] Key not valid for use in specified state."
Set the app pool to run with a service account that has local administrator rights so that it can access the certificate store.
If changing the application pool service account does not resolve the issue, uninstall and reinstall the application server, making sure to select a service account with local administrator rights as the Application Pool Identity during installation.