I have had issues with a Win7 homegroup vanishing (and therefore its shared libraries) from the homegroup list on my main PC. I can still browse shares and remote desktop into this other PC but can’t see it’s Homegroup. Weird thing is if I am sitting at this other PC i can see ALL the other Homegroup members with no issues. After much searching this seems to have solved the issue after i ran it on the remote PC
Sometimes the HomeGroup listening service is disabled.
Click on Start, and search “Administrative”
Click on “Administrative Tools”
Click on “Services”
Scroll down the list until you see “HomeGroup Listener”
If it is not started, right click on it and hit “Start”. If it is started, right click on it and hit “Restart”
Below it is “HomeGroup provider”
Do the same for that.
Scroll down until you see “Peer Networking Identity Manager”
Start or Restart this. It should also trigger a restart/start of “Peer Name Resolution Protocol” and “Peer Networking Group”
Now go back to the HomeGroup settings on your computer and the HomeGroup should be visible.
All sorted now 🙂