Symantec Endpoint Protection Manager is not updating definitions correctly.
The log.liveupdate file contains TempHostEx entries:
Error codes 1875, 1853, 1814 in log.liveupdate LiveUpdate show up as LiveUpdate tries to download content from local drive instead of from Symantec LiveUpdate server.
Follow the steps in the given order.
To register SEPM with LiveUpdate:
Type lucatalog.exe -update
To register the SEP Client with LiveUpdate: