When the site hierarchy changes, you need to rebuild sites and submit the changes in the Site Manager.
1.Log into Domain Management page.
2.In the Domain Management page, select Operations > Site Manager from the quick access toolbar.
3.In the Site Manager, click Rebuild Site to rebuild the site topology. The Site Member tab opens automatically, listing the device members in the currently selected site.
4.Click Commit to commit the site changes.
Tip: If you want to keep site topology in the Site Manager up-to-date in case that any of the site tree, site members, or network topology may change, go to Operations > Discovery/Benchmark Task > Add benchmark Task to enable the Recalculate Site option. See Benchmark Task Settings for more details.