In putting together a small RDS (Session Based) environment on Server 2016 today today I kept running across the error message below during the installation.
Failed: Unable to install the role services.
After much back and forth between forums and event viewer it turns out our default policy to disable TLS 1.0 on servers was the issue. Enabling TLS 1.0 (through the registry or with the fantastic IIS Crypto – https://www.nartac.com/Products/IISCrypto) ended up sorting the issue for us.
Hi James.
It works for me today.
Thank you so much.
What are the registry entries to enable TLS1.0?
To be honest the best fix there is to use the IIS Crypto tool – all it does it change the reg entries for you.
I had same issue, but different root cause. The Windows Internal Database service was not starting (could see error in system event logs) due to logon failure. Resolved with this article: https://docs.microsoft.com/en-us/troubleshoot/windows-server/deployment/error-install-windows-internal-database
Thank you, after about 3 hours trying to fix this, this fixed it!