We often see the following error when running Symantec Live Update: LU1834: Update not found. LiveUpdate could not find an update file on the server . . ."

Although most resolutions from Symantec show that you should "wait a day and try again" we have found that waiting does not resolve the problem.

Instead install the latest version of Live Update. Here is a Symantec link to a Live Update AutoFix tool here.