Fix One or More Network Protocols Are Missing on this Computer

one or more network protocols are missing on this computer

Some users find suddenly their network seems to be broken, and they cannot open website. It says that the connection has timed out or that the internet is limited. After they use network troubleshooter to detect problems, it gives a message “One or more network protocols are missing on this computer“.

If you are one of them, you needn’t to worry too much. There are many solutions you can use to fix this problem.

Tips: Check if your network cables are connected well before applying following solutions.

Solutions:

1: Run System File Checker

2: Reinstall TCP/IP

3: Reinstall Network Adapter Drivers

4: Disable IPv6 and Check Network Settings

5: Reset Winsock

6: Restore IP Configuration

7: Disable or Uninstall the Antivirus and Security software

Solution 1: Run System File Checker

Probably, the problem is a Windows system file problem, running sfc /scannow command can scan for corrupt system files and replace them.

1. Type cmd in the search box and right click on Command Prompt. Choose Run as administrator.

2. Input sfc /scannow in Command Prompt and hit Enter.

begin system scan

After this process completed, it will tell you the result. Check if the problem solved. If not, use other solutions.

Solution 2: Reinstall TCP/IP

The problem that one or more network protocols are missing on this computer is actually a problem with the protocols. Reinstalling protocols should be useful in a large possibility. And many users who had this problem have proved this way to be helpful.

1. Press Windows key and R key to open Run.

2. Type ncpa.cpl in the dialog box and click OK.

run ncpa cpl

3. Right click your network adapter and choose Properties.

ethernet properties

4. Choose Install.

ethernet properties install

5. Select Protocol and then click Add.

select protocol add

6. Select Reliable Multicast Protocol (if your computer has different protocol, you can choose other available protocols). Then click OK.

reliable muticast protocol

After you installed it, check if the problem remains.

Solution 3: Reinstall Network Adapter Drivers

1. Right click Start Menu and choose Device Manager.

2. Expand Network adapters. Right click your network adapter and choose Uninstall device.

uninstall

3. Click Actions on the top of the window. Choose Scan for hardware changes. then your network adapter driver should be reinstalled.

scan for hardware changes

Check if the problem is resolved after the driver is reinstalled.

Solution 4: Disable IPv6 and Check Network Settings

1. Follow step 1 to step 3 in solution 2.

2. Uncheck Internet Protocol Version 6 (TCP/IPv6).

uncheck internet protocol version 6

3. Single click Internet Protocol Version 4 (TCP/IP) and click Properties.

intenet protocol version properties

4. Make sure Obtain an IP address automatically and Obtain DNS server address automatically are checked. Then click OK.

obtain an ip address automatically

Then close these windows and see if the problem is gone.

Solution 5: Reset Winsock

1. Type cmd in the search box and right click on Command Prompt. Choose Run as administrator.

2. Type the following command and hit enter key.

netsh winsock reset

netsh winsock reset

3. Restart your computer.

Solution 6: Restore IP Configuration

1. Press Windows key and R key.

2. Input regedit.exe in the Run dialog box and click OK.

3. Follow below path:

HKEY_LOCAL_MACHINE > SYSTEM > ControlSet001 > Control > Nsi > {eb004a00-9b1a-11d4-9123-0050047759bc} > 26

locate 26 registry editor

4. Right click the 26 folder and choose Permissions.

registry editor 26 permissions

5. Select Everyone. Then tick on Allow in Full control line. Then click OK.

everyone full control 26 permissions

6. Close Registry Editor. Run Command Prompt as administrator.

7. Type the following command and hit enter.

netsh int ip reset

Close all windows after the process finished. Then restart your computer and test if the way works for you.

Solution 7: Disable or Uninstall the Antivirus and Security software

If the solutions above cannot solve the problem for you, your antivirus or security software may be the reason for one or more network protocols are missing on this computer. You can disable or uninstall this kind of software to check if the network works well. If the network is fine after you disabled the software, you need to replace your antivirus software.

In conclusion, there should be one solution among the seven solutions works for you. If you had the problem that one or more network protocols are missing on this computer, try to use these solutions.

Finally, hope they can solve your problem.

 

Related Articles:

3 Ways to Download and Update WIFI Drivers for Windows 10

Fix WIFI Does Not Connect Automaticallly on Windows 10

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