Signing in to ArcGIS Enterprise Cloud Builder 10.8.1 and earlier for Microsoft Azure does not proceed beyond the Get Started window. No error message is returned in the application.
ArcGIS Enterprise Cloud Builder 10.8.1 and earlier for Microsoft Azure rely on Microsoft .NET Framework 4.5 or higher and, by default, use TLS versions 1.0 and 1.1. These TLS versions are no longer supported by Microsoft.
To continue using these versions of ArcGIS Enterprise Cloud Builder for Microsoft Azure, ensure that TLS 1.2 is enabled for the operating system, and that TLS 1.2 is set as the default TLS version for .NET applications on the machine where Cloud Builder is installed.
See the Microsoft instructions for the machine’s operating system: