Fix One or More Network Protocols Are Missing on This Computer

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Have you ever got that one or more network protocols are missing on your computer? That error is caused by the Windows Sockets registry entries which are required for network connectivity. When those entries are missing, it makes the error reported by Windows Network Diagnostics. It appears when your system fails to connect to the internet and you click the Diagnose button. At the most of cases, in Windows Sockets API inconsistency also known as Winsock is the root cause of that problem. At the moment, we will explain you the methods how to fix one or more network protocols are missing on the computer. You can see its methods in text below.

Method 1: Reset Winsock (This method is applied for all versions of Windows).

  1. Please press “Windows key”Then type “cmd” in the search box. Right click on “cmd” and please click “Run as Administrator” from the list of results displayed. Remember that if you are on Windows 8 or 10, then you hold the “Windows Key and press “X”. Select “Command Prompt” and Click on it.
  2. After that type “netsh winsock reset” and press Enter in the black command prompt window.
  3. Then please restart your system. Check whether that problem is resolved.

Method 2: Disable NetBIOS (This method is applied for Windows 10).

  1. Please go to Control Panel > Network and Internet > Network Connections.
  2. After that right click your network adapter.
  3. Then please select “Properties”.
  4. Afterwards please click “Advanced”.
  5. Please go to the WINS tab. In NetBIOS settings section, please select “Disable NetBIOS over TCP/IP”.
  6. The last click OK to save your settings.

Method 3: Use Command Prompt (This method is applied for Windows 10).

  1. In the search bar type “Command Prompt”, then right click “Command Prompt” from the list of the results and select Run as administrator.
  2. Into Command Prompt, please type “netcfg –d” (you can also type “nets hint ipv4 install” for another option) and press Enter to run it.
  3. Please wait for the process to complete.
  4. If the process has been completed, please restart your computer restart and check whether the error is resolved.

Method 4: Restart your Network Adapters (This method is applied for all versions of Windows).

1.      Please hold the “Windows Key” and press “R”.

2.      Then type “ncpa.cpl” in the run dialog and click OK.

3.      After that please Right click your Network Adapter, and select “Disable”

4.      The last right click on it again, and please select “Enable”.

Method 5: Uninstall and Reinstall your Security/Antivirus Software (This method is applied for all versions of Windows).

1.      Please hold the “Windows Key” and press “R”.

2.      Afterwards type “appwiz.cpl” in the run dialog and click OK.

3.      Search your security software in the program list, and then right click on it.

4.      Please click “uninstall” and follow the instructions on the screen to remove it.

5.      The last you can restart your system.

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