Article ID: 929541
Article Last Modified on 2/21/2007
APPLIES TO
- Windows Vista Home Premium
- Windows Vista Ultimate
- Windows Vista Home Premium 64-bit edition
- Windows Vista Ultimate 64-bit edition
SYMPTOMS
On a computer that is running Windows Vista, if you configure a firewall after you install a Windows Media Center Extender device, the device may not work.
CAUSE
This problem may occur because the firewall closes ports that must be open for the Windows Media Center Extender device to work.
RESOLUTION
If you configure a firewall after you install a Windows Media Center Extender device, you must manually configure the firewall to open the following ports.
Application | Protocol / Port | Direction | Network |
---|---|---|---|
svchost.exe | UDP 1900 | Inbound | Local Subnet |
svchost.exe | TCP 3390 | Inbound | Local Subnet |
svchost.exe | TCP 2177 | Inbound, Outbound | Local Subnet |
svchost.exe | UDP 2177 | Inbound, Outbound | Local Subnet |
system | TCP 10244 | Inbound, Outbound | Local Subnet |
ehshell.exe | TCP 554 | Inbound, Outbound | Local Subnet |
ehshell.exe | UDP 5004, 5005 | Inbound, Outbound | Local Subnet |
ehshell.exe | TCP 8554-8558 | Inbound, Outbound | Local Subnet |
ehshell.exe | UDP 50004-50013 | Inbound, Outbound | Local Subnet |
ehshell.exe | UDP 7777-7781 | Inbound, Outbound | Local Subnet |
mcx2prov.exe | Random | Inbound, Outbound | Internet |
The procedure that you use to manually configure these ports is different for each firewall model and for each firewall manufacturer. For more information about how to configure your firewall, see its documentation.
MORE INFORMATION
For more information about how to configure a firewall for a Media Center Extender, visit the following Microsoft Web site:
Keywords: kbexpertisebeginner kbtshoot kbprb KB929541