DAG issues on Exchange 2010

Error description:

Cannot find any matching networks for the DatabaseAvailabilityGroupIpAddresses on server servername. To use a dynamically assigned IP address, omit the DatabaseAvailabilityGroupIPAddress parameter.

Actions:

Solution 1: Validate the cluster and solve existing issues
possible issues are:

• duplicate APIPA addresses on network interfaces that aren't connected

• IPv6 not disabled in the registry -> it must be disabled
• To disable IPv6 components, follow these steps:
  • In Registry Editor, locate and then click the following registry subkey:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip6\Parameters\

• modify the DisabledComponents DWORD value to 0x01 or create it ( source )

Solution 2: Remove the node from the cluster

1. Evict the node from the cluster if necessary
2. reinstall the failover clustering feature