| Event Information | According to Microsoft :
Cause :
This event is logged when the proxy server is blocking Windows Media server access to clients.
Resolution :
Disable UDP packet transmission
To disable UDP packet transmission:- On the Windows Media server, open Windows Media Services. To open Windows Media Services, click Start, point to Administrative Tools, and then click Windows Media Services.
- In the console tree, click the Windows Media server.
- In the details pane, click the Properties tab, and then select the Show all plug-in categories check box.
- In Category, click Unicast streaming.
- In Plug-in, right-click WMS Unicast Data Writer, and then click Properties.
- In the WMS Unicast Data Writer Properties dialog box, on the General tab, clear the UDP check box.
- Click OK to save the changes.
Note : After you turn off UDP packet transmission in the plug-in, clients that try to receive UDP transmissions through network components that are not UDP-enabled may experience latency during the protocol rollover process.
Verify :
To verify that the unicast stream can be delivered to clients, test the stream by using Windows Media Player:- If you want to test the stream by using Windows Media Player on the computer that is running Windows Media Services, you must install Desktop Experience.
- On the Windows Media server, open Windows Media Services. To open Windows Media Services, click Start, point to Administrative Tools, and then click Windows Media Services.
- In the console tree, click the publishing point that hosts the stream that you want to test.
- In the details pane, click the Announce tab, and then, in Connect to a unicast stream, note the value of the URL that a client can use to access the content.
- Start Windows Media Player on a computer that can access the stream, and enter the URL that you noted in the previous step.
- Using the Player controls, test the control functionality of the content stream. Broadcast streams can use the Start and Stop commands. On-demand streams can use the Start, Stop, and Pause commands, and the Seek bar.
- Test all the available streaming protocols. A unicast stream will try to connect by using the MMS protocol, but will switch to the RTSP protocol if network conditions or the Player version requires it. The HTTP protocol is not active unless the WMS HTTP Server Control Protocol plug-in is enabled. For more information, see About data transfer protocols.
- Allow the stream to play for a representative period of time and check that the stream quality is sufficient for the type of content and the capabilities of the equipment.
Note : If some members of your expected audience will access the stream from outside your network firewall, your testing scenario should include that condition. |