Microsoft KB Archive/171766

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Err Msg: Could Not Connect to Multicast Channel

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Q171766

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The information in this article applies to:


 * Microsoft NetShow

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SYMPTOMS
When you dial in to use NetShow with multicasting, the following error message occurs:

Could not connect to Multicast Channel

NOTE: Internally on the network, NetShow is working.

WORKAROUND
If you are dialing into a Remote Access Server (RAS), the error occurs because the RAS server currently does not support multicast. You need to dial into a device that supports multicast, for example a Terminal server like Ascend Max 4000.

If you are not dialing into a RAS server, check with your ISP to see if they support multicast.

Notes:


 * Every router between you and your server must also support multicast and be enabled for multicast.
 * Multicast is great for reducing bandwidth on corporate networks; however, it is not quite ready for the Internet.

MORE INFORMATION
For additional information, please see the Multicast white paper at:

"http://www.microsoft.com/ntserver/mediaserv/techdetails/overview/multiwp.asp" You can also refer to the following Internet sites for more information:

http://www.serpentine.com/~bos/tech/mbone/

http://www.stardust.com/ipmulticast The third-party products discussed here are manufactured by vendors independent of Microsoft; we make no warranty, implied or otherwise, regarding these products' performance or reliability.

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