How to use MOSDAL to enable tracing for the Microsoft Online Services Sign-in Assistant to troubleshoot rich client authentication issues

This article discusses how to use the Microsoft Online Services Diagnostic and Logging (MOSDAL) Support Toolkit to enable tracing for the Microsoft Online Services Sign-in Assistant. The log files that the tool generates can help troubleshoot issues that may occur when you use the Sign-in Assistant in a Microsoft Office 365 environment.

To use the MOSDAL Support Toolkit to enable logging and collect Sign-in Assistant trace log files, follow these steps:

1. Download and install the MOSDAL Support Toolkit from the following Microsoft website:
   
   http://www.microsoft.com/downloads/en/details.aspx?FamilyID=457e0786-1bec-40a2-95ab-06428f53b5cc (http://www.microsoft.com/downloads/en/details.aspx?FamilyID=457e0786-1bec-40a2-95ab-06428f53b5cc)
2. Start the MOSDAL Support Toolkit. To do this, click Start, point to All Programs, click MOSDAL Support Toolkit, and then click MOSDAL Support Toolkit.
3. Select the language that you want to use, click Next, enter your credentials (this does not affect Sign-in Assistant logging), and then click Advanced Mode.
4. In the Data Collection list, make sure that Microsoft Online Services Sign-In Assistant is selected, and then click Next.
5. You are prompted to close all rich-client applications and reproduce the rich-client authentication issue.
   1. Restart the Microsoft Online Services Sign-In Assistant service to make sure that the correct logging level is active. To do this, do one of the following:
      • Click Start, click Run, type services.msc, and then press Enter. In the list of services, right-click Microsoft Online Services Sign-In Assistant, and then click Restart.
        
      • Click Start, point to All Programs, click Accessories, right-click Command Prompt, and then click Run as administrator. Type the following command, and then press Enter:
        net stop msoidsvc && net start msoidsvc
   2. Reproduce the issue by signing in to the rich client that you are experiencing issues with. For example, Microsoft Lync 2010, Microsoft Office Professional Plus, and so on.
      
   3. When you finish reproducing the issue, click Generate Report, and then wait for data collection to finish.
6. Click Close MOSDAL and open the log files folder. Windows Explorer opens the folder where the trace log file is located.
7. Open the REPORTS_ folder that has the most recent date and time, and then open the DataCollectionMicrosoftOnlineServicesIDCRL folder. The log file that has the most recent date and time corresponds with the issue that you just reproduced.