Homesharing does not work

Question

- I cannot see my home PC on the appletv

Answer 1

had similar problem. it would work sometimes which is maddening but at least i know it was set up right to begin with. lots of trial and error the following worked for me on several computers and apple TV. hope it helps.
A. make sure Bon Jour is running. in itunes, edit>preferences>sharing. if you see sharing on, its ok. if not will say Bon Jour is not running. to fix,
1. Right-click Computer and select Manage.
2. Select Services and Applications > Services.
3. Double-click the Bonjour service, set the Startup type to Automatic.
4. Click Apply.
5. Click the Start button.
6. Close iTunes if it is open, then restart it.
B. disable IP6. (windows 7 others are similar) This is what fixed my Apple tv not seeing my itunes library
1. Open Control Panel.
2. Choose Network and Internet.
3. Select the View network status and tasks under the Network and Sharing Center section.
4. Choose your active network connection. Usually a wireless adapter of some sort.
5. Click the Properties button.
6. If Internet Protocol Version 6 (TCP/IPv6) is checked, uncheck it, then click OK.
7. Click Close.
8. Restart iTunes and try to use the Home Sharing feature again.
This fixed my problem so sharing for what it's worth. i spent hours trying to solve it, so hope it helps someone else. this may be unique to my combo of wireless adapters, linksys router, norton antivirus etc. but it worked.