I recently encountered issue in the installation IaaS component of vRealize Automation 6.2.1. Normally, you just run the pre-req automation PS1 script, execute the IaaS installer and you’re all set. But for this instance, I keep receiving the below error:
System.Data.Services.Client.DataServiceTransportException: The underlying connection was closed: An unexpected error occurred on a send. —> System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a send. —> System.IO.IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. —> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host
I’ve tried doing Custom Install but still the same.
The IaaS Server is running Windows Server 2k12 R2 and a remote MSSQL 2012.
Looking around the interwebs, I found the following post
It talks about vCAC in Windows 2012 having issues with Guagent. Although it’s a different issue, from the log entries in Windows event viewer the system error (Schannel Fatal Alert 40) is pointing to the same solution: Disable TLS 1.2
So went ahead and download the IISCrypto to disable TLS 1.2.. and voila — it worked 🙂
Link for IISCrypto : https://www.nartac.com/Products/IISCrypto/Download