You cannot connect to the Media Center Extender for Windows XP Media Center Edition 2005 after you install the Windows OneCare Live beta (913963)

RESOLUTION

Step 1: Add the Media Center Extender applications to the list of allowed applications in Windows OneCare Firewall

1. Open Windows OneCare, and then click View or change settings.
2. Click the Firewall tab.
3. Click Advanced settings.
4. Verify that the following applications are listed and are set to Allow.
   • Media Center
   • MCRMgr
   • MCXNetTw.exe
   • MCRD Device Service
   • Media Center Extensibility Host
   If one or more of these applications are not listed, follow these steps:
   1. Click Add.
   2. Type C:\WINDOWS\ehome\, and then press ENTER.
   3. Click Ehshell.exe, and then click Open.
   4. Click Add.
   5. Click Mcrdsvc.exe, and then click Open.
   6. Click Add.
   7. Click Ehexthost.exe, and then click Open.
   8. Click Add.
   9. Click MCXNetTw.exe, and then click Open.
   10. Click Add.
   11. Click MCRMgr.exe, and then click Open.
5. Verify that each of these applications is set to Allow.

Step 2: Add the Media Center Extender ports to the Ports and Protocols tab in Windows OneCare Firewall

1. Open Windows OneCare, and then click View or change settings.
2. Click the Firewall tab.
3. Click Advanced settings.
4. Click the Ports and Protocols tab.
5. Click to select the Windows Media Extender - Xbox 360 (TCP 3390) check box and the Universal Plug and Play - Xbox 360 (UDP 1900) check box.
   
   Note If these check boxes are not listed, upgrade to the latest version of Windows OneCare, or manually add these port settings. To manually add the port settings, click Add, and then insert the settings according to the table in this section.
6. Click OK two times.