ATP web console UI is not available after upgrade from ATP version 3.0.5 to version 3.1.0.
ATP8840 model appliance upgraded from ATP Platform version 3.0.5 to one of the following: ATP Platform 3.1.0, ATP Platform 3.2.0, SEDR 4.0.0.
The elasticsearch fails to initialize database shards before reaching a set timeout.
To prevent this issue, upgrade to Symantec Endpoint Detection and Response (SEDR) 4.1.0.
If you encounter this issue, contact Symantec Technical Support for assistance with restoring the UI.