How to Fix Diagnostics Policy Service Is Not Running Error (No Internet)

Fix Diagnostics Policy Service Error

Before trying diagnostics utility, I rebooted the network devices like modem and router. But the internet wasn’t working on my PC. Then I used the same internet connection on another machine, and it was working fine. I thought something is wrong with my Windows network settings and I performed the following steps to solve the problem. You should follow these steps to fix the problem.

1. Try to troubleshoot the problem using Windows built-in Network Diagnostics tool. Right-click on the limited connection network/WiFi icon in status bar and select “Troubleshoot Problems” from the menu.
   
2. Diagnostics tool will take some time to analyze Windows network settings and will show you the problem if found any and ask to fix that.
3. If you are getting an error message like “The Diagnostics Policy Service Is Not Running.” The error shows that the diagnostics service is not running and we need to run the diagnostics policy service and fix the problem.
   
4. Press shortcut Windows+Q keys or Press the Windows key from keyboard and then type cmd, this will search the Command Prompt. Right-Click on Command Prompt search result and select “Run as Administrator” option from the menu.
   
5. In the Command Prompt Window, you need to run the following two commands one by one
   net localgroup Administrators /add networkservice
6. net localgroup Administrators /add localservice
   If command executed successfully, then you will see the success message as shown below.
   NOTE: If you are getting any error while running these commands. Make sure you run the command prompt as administrator. Also, try to modify the command, just replace /add with /delete and run both commands. After that rerun both commands with /add same as mentioned above or showing in the screenshot below.
   
7. Type Exit and hit Enter to close the command prompt. Now, restart your computer to apply the changes.
8. Now, troubleshoot problem again see step-1 above. I hope your problem will be solved now, and you can enjoy internet on your computer.

Check Diagnostic Policy Service Status

You can also check the diagnostic policy service status form the Windows Services utility.

• Press Windows+R keys to open the Run window, type command "services.msc” and hit OK.
• In the Services window scroll-down to find a service with the name “Diagnostic Policy Service.” Right-click on this and select Properties, here make sure this service is up and running as shown below.