Windows Media Center | Learn More | Using extenders

2/5/10 10:36 AMWindows Media Center | Learn More | Using extenders | Help > Firewalls and Extenders

Page 1 of 6http://www.microsoft.com/windows/windows-media-center/learn-more/extenders/help/extenders-firewalls.aspx

Watch Internet TV

Record broadcast TV

Using extenders

On the go

Your media library

Custom settings

Firewalls and Extenders

Extenders for Windows Media Center use network ports to communicate with PCs running Windows over your

home network. If you're having trouble setting up your Xbox 360, it could be because these ports can be blocked

by firewalls running on your PC.

Here's the information you need to troubleshoot firewall issues.

This tutorial covers the following topics:

Find out which firewall is running on your PC

Configuring Windows Firewall

Configuring Windows Live OneCare

Configuring a non-Microsoft firewall

Find out which firewall is running on your PC

These firewalls are configured to automatically work with Windows Media Center Extender:

Windows Firewall

Norton Internet Security 2007

Norton 360

McAfee Internet Security Suite 2007

Windows Live OneCare 2.0

Follow the instructions on this page to find out which firewall your PC is using, and how to configure it to work

with a Windows Media Center Extender.

If you're not sure whether Windows Firewall is running on your PC, or whether your PC came with another

firewall installed and running, here's how you can check to see which firewalls are installed on your computer:

1. Click the Start button, click Control Panel, and then click Security.

2. Click Security Center and Expand the Firewall section if it's not already expanded. This will tell you

which firewall is protecting your PC.

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2/5/10 10:36 AMWindows Media Center | Learn More | Using extenders | Help > Firewalls and Extenders

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3. If you see that multiple firewalls are running on your PC, click Show me the firewall programs on this

computer to bring up the complete list of firewalls that are installed and running on your PC.

Note: It is recommended that you only run one firewall at a time on your PC.

Configuring Windows Firewall

Windows Firewall is automatically configured to enable your Media Center Extender to connect to your Windows-

based PC using Windows Media Center during setup. However, if the settings are changed after setup has

completed, connectivity between your Media Center Extender and your Windows -based PC will be disrupted.

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completed, connectivity between your Media Center Extender and your Windows -based PC will be disrupted.

To manually configure or verify the configuration of Windows Firewall:

1. Click the Start button, click Control Panel, and then click Security.

2. Under Windows Firewall, click Allow a program through Windows Firewall. Because this task requires

Administrator rights, you will see a User Account Control dialog box.

3. On the Exceptions tab, scroll down the list and locate the entry for Media Center Extenders. Select the

check box next to this entry, if it is not already enabled, and click Apply.

4. Click the General tab, and make sure that the Block all incoming connections option is not selected.

2/5/10 10:36 AMWindows Media Center | Learn More | Using extenders | Help > Firewalls and Extenders

Page 4 of 6http://www.microsoft.com/windows/windows-media-center/learn-more/extenders/help/extenders-firewalls.aspx

Configuring Windows Live OneCare

Windows Live OneCare needs to be configured to enable your Windows Media Center Extender to connect to

your Windows-based PC.

To manually configure or verify the configuration of Windows Live OneCare:

1. Launch Windows Live OneCare.

2. Under Common Tasks, click Change OneCare settings.

3. Click the Firewall tab, and then click the Firewall connection tool button.

4. Locate the entry for Connect my Xbox 360 or Media Center Extender to my Media Center PC. Select

the check box next to this entry if it is not already enabled, and then click Apply.

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Additionally, the firewall protection level can affect connectivity. If the protection level is set to Restricted,

connectivity between the Windows Media Center Extender and Windows Media Center will be broken. The

firewall protection level should be set to Automatic (recommended).

Configuring a non-Microsoft firewall

If you use a non-Microsoft firewall, you may need to manually configure your firewall to allow Media Center

Extender applications access to the ports. A firewall vendor may ask you to configure the firewall in two different

ways.

1. Some firewall vendors want you to configure the firewall for the actual application—in other words, to let

the firewall know what application(s) can access the ports.

2. Some firewall vendors may want you to configure the port or ports the application is using.

During the firewall configuration process, you may also need to know what network the application or port needs

to work with. In the configuration setting, a Local Subnet network means the application or port is for use on the

local (or your "home") network. Internet means the application will talk to other computers on the Internet.

The following table shows the specific information you will need to configure some non-Microsoft firewalls for

specific Windows Media Center Extender applications.

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

2/5/10 10:36 AMWindows Media Center | Learn More | Using extenders | Help > Firewalls and Extenders

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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

mcrmgr.exe Random Inbound,

Outbound

Internet

The procedure for manually configuring a firewall is different for each firewall model and for each firewall

manufacturer. For more information about how to configure your firewall, see your firewall documentation.