Error Message:

  • Article

Cluster IP Address resource 'name' cannot be brought online because the subnet mask parameter is invalid. Please check your network configuration.

Explanation:

The subnet mask parameter of the network configuration does not match the required XXX.XXX.XXX.XXX format. The incorrect subnet mask might have been specified in the registry with a registry editor or a tool that's not part of the Cluster service. Cluster service tools validate any subnet mask that you enter.

User Action:

Locate the incorrect subnet mask, and correct it.