Hello,
Upon checking your Logs, I found these Errors -
28/05/2012, 16:05:09 GMT -> Progress Update: DOWNLOAD_FILE_START: URL: "http://liveupdate.symantecliveupdate.com/symevent64x86$20installer_12.8_symalllanguages_livetri.zip",Estimated Size: 0, Destination Folder: "C:\ProgramData\Symantec\LiveUpdate\Downloads"
28/05/2012, 16:05:09 GMT -> HttpSendRequest (status 404): Request failed - File does not exist on the server.
28/05/2012, 16:05:09 GMT -> Progress Update: DOWNLOAD_FILE_FINISH: - NOTE - URL: "http://liveupdate.symantecliveupdate.com/symevent64x86$20installer_12.8_symalllanguages_livetri.zip", Full Download Path: "C:\ProgramData\Symantec\LiveUpdate\Downloads\symevent64x86$20installer_12.8_symalllanguages_livetri.zip" HR: 0x802A0026
28/05/2012, 16:05:09 GMT -> HR 0x802A0026 DECODE: E_HTTP_NOT_FOUND
28/05/2012, 16:05:09 GMT -> Progress Update: DOWNLOAD_BATCH_FINISH: HR: 0x0 , Num Successful: 0
28/05/2012, 16:05:09 GMT -> Progress Update: DOWNLOAD_BATCH_START: Files to download: 1, Estimated total size: 0
28/05/2012, 16:05:09 GMT -> Progress Update: DOWNLOAD_FILE_START: URL: "http://liveupdate.symantecliveupdate.com/ms$20light_5.0_symalllanguages_livetri.zip", Estimated Size: 0, Destination Folder: "C:\ProgramData\Symantec\LiveUpdate\Downloads"
28/05/2012, 16:05:09 GMT -> HttpSendRequest (status 404): Request failed - File does not exist on the server.
28/05/2012, 16:05:10 GMT -> Progress Update: DOWNLOAD_FILE_FINISH: - NOTE - URL: "http://liveupdate.symantecliveupdate.com/ms$20light_5.0_symalllanguages_livetri.zip", Full Download Path: "C:\ProgramData\Symantec\LiveUpdate\Downloads\ms$20light_5.0_symalllanguages_livetri.zip" HR: 0x802A0026
28/05/2012, 16:05:10 GMT -> HR 0x802A0026 DECODE: E_HTTP_NOT_FOUND
28/05/2012, 16:05:10 GMT -> Progress Update: DOWNLOAD_BATCH_FINISH: HR: 0x0 , Num Successful: 0
28/05/2012, 16:05:10 GMT -> Progress Update: TRIFILE_DOWNLOAD_END: Number of TRI files: "0"
28/05/2012, 16:05:10 GMT -> ********* Finished Finding Available Updates *********
28/05/2012, 16:05:10 GMT -> LiveUpdate did not find any new updates for the given products.
28/05/2012, 16:05:10 GMT -> EVENT - SESSION END SUCCESSFUL EVENT - The LiveUpdate session ran in Silent Mode. LiveUpdate found 0 updates available, of which 0 were installed and 0 failed to install. The LiveUpdate session exited with a return code of 100, LiveUpdate se ejecutó correctamente. No hay actualizaciones de sus productos.
28/05/2012, 16:05:10 GMT -> IE9 support.
Question and Suggestions -
1) What version of SEP are you running?
Make sure you are running the Latest Version of SEP 11.x / SEP 12.1 on your machine.
2) Check this Articles below:
Symantec Endpoint Protection Managed Clients Fail to Update Content Via LiveUpdate without Obvious Error
After migration to Symantec Endpoint Protection, LiveUpdate fails to download content
3) As per the Logs, we see, that Product: LiveUpdate, Version: 3.3.0.107, Language: Spanish. So, i believe you are running the SEP 11.0 RU7 MP1. If not, please let me know.
Also, Check these Threads -
Hope that helps!!