This monitor checks whether DFS Namespaces successfully initialized the trusted domain list.
An unhealthy state of this monitor indicates that DFS Namespaces could not initialize the trusted domain list. This can occur for the following reasons:
Active Directory Domain Services issues
Test network connectivity
To test network connectivity with the affected server, use the following procedure:
1. Open a command prompt window and then use the ping command to check basic network connectivity. If the ping command fails, it is likely that the server is not running, or has network problems that require local access to resolve. If ping is blocked in your network environment, skip this step.
2. If the ping command is successful, test the server’s registration in DNS by using the nslookup command. If the nslookup command fails, there is a problem with DNS. Check the DNS server health or contact the DNS server administrator.
3. If the nslookup command succeeds, it is likely that the shared folder is offline (possibly for maintenance) or there are problems with the permissions on the shared folder.
This monitor resets to a Healthy state after the DFS Namespace service initializes trusted domain information and it detects DFS Namespaces event 14549.