NMC: Unable to set user privileges based on user token for SYSTEM on nmc_server_name. Failed to validate security token

• Adding additional NetWorker servers to NetWorker Management Console (NMC), the following error may appear when trying to connect to one or more of the NetWorker servers.

Unable to set user privileges based on user token for SYSTEM on nmc_server_hostname. Failed to validate security token

• In some instances, you may be able to connect to the NetWorker server; however, the Tabs in the NMC are blank and do not show any data. 

1. Confirm what host was configured as the authentication server during NMC installation. On the host where the NMC server is installed, find the configured authentication host and port (default 9090) in the gstd.conf:

string authsvc_hostname = "nsrsvr.lab.loc";
    int authsvc_port = 9090;

2. On each NetWorker server being added to NMC, run the following commands. Leave portnum as 9090 (default) unless it has been configured otherwise; authsvc_hostname must be the same hostname specified in gstd.conf:

nsrauthtrust -H authsvc_hostname -P 9090
nsraddadmin -H authsvc_hostname -P 9090

3. Finally, add the account running the NMC service (replace user with nsrnmc for Linux and SYSTEM for Windows NMC servers) as an Administrator to the NetWorker server being added to NMC for administration:

nsraddadmin -u user@nmc_server_hostname

NMC: Verify NetWorker Authentication Service is Running