Why do I get error C00D11B3 when I try to stream content?Error message: "Windows Media Player cannot play the file because a network error occurred. The server might not be available. Verify that you are connected to the network and that your proxy settings are correct."
This error occurs for one of the following reasons:
• The Web server that stores the file is not available. (For example, the server is busy or not online.) In this case, you can try to play the file again later, when the server is available.
• Your computer is not connected to the local area network (LAN) or to the Internet. Connect to the network or Internet, and then try again.
• The proxy settings for the Player are not configured properly. See the first question for more information (see below *).
• Your firewall is preventing the Player from connecting to the Internet, or the Player is set to work offline. See the previous question for more information.
• The Web page from which you are trying to stream content requires that cookies be enabled. For more information about changing the privacy settings in Internet Explorer to enable cookies, see Microsoft Internet Explorer Help.
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* First question
Usually, this error indicates that the proxy settings for Windows Media Player are not configured properly.
To verify that your proxy settings are correct
1. In Windows Media Player, on the Tools menu, click Options.
2. In the Options dialog box, on the Network tab, in the Streaming proxy settings area, verify your settings. If you don't know what your proxy settings should be, select a protocol, click Configure, and then in the Configure Protocol dialog box, select either Autodetect proxy settings or Use proxy settings of the Web browser. (The latter setting is available for the HTTP protocol only.)
3. Repeat step 2 for each protocol that is displayed in the Streaming proxy settings area.
In some cases, this error can occur if the Player tries to receive the stream by using the User Datagram Protocol (UDP), but for some reason it can't. You may be able to fix the error by turning off this option in the Player.
To turn off UDP streaming
1. In Windows Media Player, on the Tools menu, click Options.
2. In the Options dialog box, on the Network tab, in the Streaming protocols area, clear the UDP check box.
http://www.microsoft.com/windows/windowsmedia/knowledgecenter/mediaadvice/0106.mspx#712