2506312 - Contract Generation Server is not working and showing error "HRESULT: 0x8001010A (RPC_E_SERVERCALL_RETRYLATER) "

When user tries to generate contract using Microsoft Window server(Old CG) then contract generation process gets failed and Word Service (FCI logs) shows following error:

1. "HRESULT: 0x8001010A (RPC_E_SERVERCALL_RETRYLATER"
2. “remote procedure call failed”
3. “HKEY CLASS ID”

Snippet from logs:

4/26/2017 12:49:55 PM local3 ERROR class="WordService".asmx.cs;sessionid=J4jsk4eY38oR_hDXVEVGWLZ76SerWwF2F-Im_SAP;username=-2147478142:104:Sh*** Ma****;server=US****;method=assemblyDoc;exception=System.Runtime.InteropServices.COMException (0x8001010A): The message filter indicated that the application is busy. (Exception from HRESULT: 0x8001010A (RPC_E_SERVERCALL_RETRYLATER))| at Microsoft.Office.Interop.Word.DocumentClass.Close(Object& SaveChanges, Object& OriginalFormat, Object& RouteDocument)| at Frictionless.Web.Services.WordService.validateAttachments(AssemblyDocMsg msg) in e:\wwwroot\1\ROOT\WordService\App_Code\WordService.asmx.cs:line 4034| at Frictionless.Web.Services.WordService.assemblyDoc(AssemblyDocMsg msg) in e:\wwwroot\1\ROOT\WordService\App_Code\WordService.asmx.cs:line

• SAP Sourcing 7.0 and SAP Contract Lifecycle Management 7.0
• SAP Sourcing 9.0 and SAP Contract Lifecycle Management 9.0
• SAP Sourcing 10.0 and SAP Contract Lifecycle Management 10.0

Contract Generation not working, Word service is down, Old CG,The message filter indicated that the application is busy. (Exception from HRESULT: 0x8001010A (RPC_E_SERVERCALL_RETRYLATER)). , KBA , SRM-ESO-CG , Contract Generation for SAP Sourcing & CLM , How To