Cannot connect to Controller Client due to registry setting

After you install the stand-alone Controller client, you cannot connect to the Cloud instance.

Cause

If you cannot connect to Controller client, it may be related to an incorrect registry setting.

Solution

Follow these steps:

  1. Open the registry editor by clicking the Start menu and typing regedit
  2. Navigate to the following location: [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v4.0.30319]
  3. Right-click v4.0.30319, and then select New > DWORD(32-bit).
  4. Set the Name value to SchUseStrongCrypto.
  5. Set the Data value to 00000001
  6. Keep the base in Hexadecimal.
  7. Restart the Excel application.

For more information, see https://www.ibm.com/support/pages/how-configure-force-controller-use-tls-12