You try to create a homegroup on a Windows 7-based computer that has Internet Protocol version 6 (IPv6) enabled. However, you receive the following error message:
Your network connection must have IPv6 enabled to create or join a homegroup.
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756 How to back up and restore the registry in Windows
To resolve this issue, follow these steps:
Start the following services:
Peer Networking Grouping
PNRP Machine Name Publication Service
To start these services, follow these steps:
Click Start, type Services.msc in the Search programs and files box, and then press ENTER.
Right-click Peer Networking Grouping, and then click Properties.
On the General tab, check whether the service is started. If the service is not started, click Start.
In the Startup type list, select Automatic.
Repeat steps 1b through 1e to start PNRP Machine Name Publication Service.
Modify a registry key entry to enable IPv6. To do this, follow these steps:
Click Start, type regedit in the Search programs and files box, and then press ENTER.
Locate and then click the following registry subkey: