I was having trouble with this too. In my home lab I decided to modify the default hostname under the Index settings (Server settings » General settings) and my monitoring console was still showing the old hostname when I was trying to check my index usage under "Indexes and Volumes: Instance" no matter how many times I applied the change. I was curious If I could locate this string within the file system so I grep for the string "splunk-3" (my old instance name): grep -rnw "/opt/splunk/" -e "splunk-3" This returned a few notable entries: 51,3463,completed,"0.715357022","1514786400.000000000","1514874115.000000000",,"1514786400.000000000","1514874115.000000000",,,,,,,,,,,,,,,,, /opt/splunk/etc/apps/splunk_monitoring_console/lookups/assets.csv:2:localhost,"splunk-3","splunk-3","splunk-3","dmc_group_indexer",,,,, /opt/splunk/etc/apps/splunk_monitoring_console/lookups/assets.csv:3:localhost,"splunk-3","splunk-3","splunk-3","dmc_group_kv_store",,,,, /opt/splunk/etc/apps/splunk_monitoring_console/lookups/assets.csv:4:localhost,"splunk-3","splunk-3","splunk-3","dmc_group_license_master",,,,, /opt/splunk/etc/apps/splunk_monitoring_console/lookups/assets.csv:5:localhost,"splunk-3","splunk-3","splunk-3","dmc_group_search_head",,,,, Decided to replace "splunk-3" with my new hostname " nano /opt/splunk/etc/apps/splunk_monitoring_console/lookups/assets.csv peerURI,serverName,host,machine,"search_group","mv_peerURI","mv_serverName","mv_host","mv_machine","__mv_search_group" localhost,"splunk-index1","splunk-index1","splunk-index1","dmc_group_indexer",,,,, localhost,"splunk-index1","splunk-index1","splunk-index1","dmc_group_kv_store",,,,, localhost,"splunk-index1","splunk-index1","splunk-index1","dmc_group_license_master",,,,, localhost,"splunk-index1","splunk-index1","splunk-index1","dmc_group_search_head",,,,, Returned to the monitoring console and refreshed the page, monitoring console is working as intended. Keep in mind I am using a trial license in my home lab and don't suggest doing this in a prod environment without proper testing... Finished by restarting Splunk and verifying still getting data in and indexing properly. ... View more