When Netbios is not available for a specific cmdb_ci_computer CI, the OS Domain field is not populated due to a system property called glide.discovery.domain.name.nbt, which is set to true by default.

1. SET glide.discovery.domain.name.nbt to true.
2. Discover a CI which does not have Netbios available.
3. OS Domain should be blank.
4. SET glide.discovery.domain.name.nbt to false.
5. OS Domain is now populated.

This is expected behavior and by design in all currently supported releases.

To change the behavior:

1. Set glide.discovery.domain.name.nbt to false (current default: true)
   
   OR
   
   2. Replace in the Sensor "Windows - Classify" the following lines:
   
   

if (!JSUtil.toBoolean(gs.getProperty("glide.discovery.domain.name.nbt", "true")))

with

if (JSUtil.toBoolean(gs.getProperty("glide.discovery.domain.name.nbt", "true")))