Disable Windows IPv6 on the WSUS Server

Sometimes the WSUS IP will be IPv6. JetPatch does not support this scenario.  In order to account for this, you must disable IPV6 on the WSUS server (including any replicas) at both the network and system level.

To fix it, complete the following steps:

1) Disable IPV6 in the Network Adapter Using this Powershell command (as admin):

Get-NetAdapter | foreach { Disable-NetAdapterBinding -InterfaceAlias $_.Name -ComponentID ms_tcpip6 }

•  You can check if the IPv6 is successfully disabled using this Powershell command:

Get-NetAdapter | foreach { Get-NetAdapterBinding -InterfaceAlias $_.Name -ComponentID ms_tcpip6 }

2) Disable the IPV6 system component from the registry

1. Open the Registry Editor:

   • Click the Start button, type regedit, and press Enter.

2. Navigate to the Correct Registry Path:

   • Go to

     HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\TCPIP6\Parameters

     Create a New Registry Value:

     • Right-click on the Parameters folder, select New, and choose DWORD (32-bit) Value.
     • Name the new value DisabledComponents.

3. Modify the Registry Value:

   • Right-click on the new DisabledComponents value and select Modify.
   • Set the value to FF (hexadecimal) and click OK.

4. Reboot Your Computer:

   • Restart your computer to apply the changes. IPv6 will now be disabled on all interfaces, including loopback and tunnel interfaces.

3) After reboot, check that IPV6 is correctly disabled open a CMD and try:

ping localhost

Using Windows CLI 

Open command prompt in Administrator mode and run below command and reboot computer

reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip6\Parameters" /v DisabledComponents /t REG_DWORD /d 255 /f

Note: we have no plans to support IPV6 with WSUS, because in general, unless your domain network is properly configured to handle IPv6, there is no benefit to leaving it enabled as it would cause more harm than good when it comes to domain name resolution and networking.

Note: This script will reboot your system at the end of the process.