You may try to disable RC4 Cipher on Orchestrator machines first:
• Manually disable RC4 in TLS on systems running .NET Framework 4.5/4.5.1/4.5.2
Despite the fact that an update is available for systems running .NET Framework 4.5/4.5.1/4.5.2, the following steps are primarily for customers with .NET Framework 4.5/4.5.1/4.5.2 applications running on systems with .NET Framework 4.6 present. For customers running only .NET Framework 4.5, 4.5.1, or 4.5.2, the manual steps serve as an optional alternative to installing the available update.
Note These steps require the use of Registry Editor. Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk. For information about how to edit the registry, view the "Changing Keys And Values" Help topic in Registry Editor (Regedit.exe) or view the "Add and Delete Information in the Registry" and "Edit Registry Data" Help topics in Regedt32.exe.
1. Create a text file named strongcrypto4-enable.reg that contains the following text:
For 32-bit applications on 32-bit systems and 64-bit applications on x64-based systems:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v4.0.30319
"SchUseStrongCrypto"=dword:00000001
For 32-bit applications on x64-based systems:
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\.NETFramework\v4.0.30319
"SchUseStrongCrypto"=dword:00000001
2. Run regedit.exe.
3. In Registry Editor, click the File menu and then click Import.
4. Navigate to and select the strongcrypto4-enable.reg file that you created in the first step.
(Note If your file is not listed where you expect it to be, ensure that it has not been automatically given a .txt file extension, or change the dialog’s file extension parameters to All Files).
5. Click Open and then click OK
6. Exit Registry Editor and restart the system.
