Teams - Network Assessment Tool (NAT)

Teams - Network Assessment Tool (NAT)

Install NAT

This guide outlines the steps to download, configure, and run the Microsoft Teams Network Assessment Tool (NAT) to help evaluate network quality for Microsoft Teams calls.

Download and Install the Network Assessment Tool

  1. Go to the official Microsoft download page:
    Download NAT from Microsoft
  2. Download and complete the installation of the Microsoft Teams Network Assessment Tool.

Configure Media Duration

  1. Open Notepad as Administrator. (Right-click Notepad > Run as administrator)
  2. In Notepad, go to File > Open, set the file type filter to All Files, and navigate to: C:\Program Files (x86)\Microsoft Teams Network Assessment Tool
  3. Locate and open the file named:  NetworkAssessmentTool.exe.config
  4. Search for the following entry:   <addkey="MediaDuration"value="300" />
    Change the value from 300 to your desired run time in seconds.
    Example: 3600 for one hour.
  5. Save the file, ensuring it is saved with the original .config extension (not as a .txt file)

Replace the Existing Config File

  1. If your modified file was saved elsewhere (e.g., Documents), copy it.
  2. Navigate to: C:\Program Files (x86)\Microsoft Teams Network Assessment Tool
  3. Locate and delete the existing NetworkAssessmentTool.exe.config file.
  4. Paste your modified version into this directory.

Run the Network Assessment Tool

  1. Open PowerShell as Administrator.
  2. Navigate to the tool’s installation directory by running:  cd 'C:\Program Files (x86)\Microsoft Teams Network Assessment Tool'
  3. To start the assessment, run:  .\NetworkAssessmentTool.exe /qualitycheck

Results and Reporting

The tool will run for the configured MediaDuration (in seconds).
Once completed, it will provide the location of the test results in an Excel-format file.
Review the results to assess network quality metrics like latency, jitter, packet loss, and media protocol.