| Event Id | 20157 |
| Source | RemoteAccess |
| Description | The interface: %1 could not be enabled for multicast. %2 will not be activated over this interface. |
| Event Information | According to Microsoft : Cause : This event is logged when the interface could not be enabled for multicast. Resolution : Enable the interface or configure multicast scopes Confirm that the network interface routing multicast traffic is enabled and a multicast scope is configured. To perform these procedures, you must have membership in Administrators , or you must have been delegated the appropriate authority. Follow the procedures in the order in which they appear until the problem is resolved. Enable the network interface To enable the network interface:
To configure multicast scopes: A scope is a range of IP multicast addresses and is defined by specifying the address range as an IP address and mask. Multicast addresses in the range of 239.0.0.0 to 239.255.255.255 (239.0.0.0/8) are used to specify administrative scopes, as defined in RFC 2365. However, the range of 239.255.0.0/16 is defined as a local scope and cannot be divided further.
To verify that multicast traffic is being forwarded to the multicast group address, on a receiving host, open a multicast-enabled application and verify streaming content is being received. |
| Reference Links | Event ID 20157 from RemoteAccess |
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