LiveUpdate is not able to download new definitions. Return Code LU1845

Article:TECH173845  |  Created: 2011-11-08  |  Updated: 2011-11-08  |  Article URL
Article Type
Technical Solution



LiveUpdate is not able to download the Virus Definition Updates. LiveUpdate shows a return code of LU1845.


The callback failed with a return code of 0x80004005.

The PreSession callback for product SESC Virus Definitions Win32 v11 completed with a result of 0x80004005

LiveUpdate aborted product SESC Virus Definitions Win32 v11 for the following reason(error code 1845), This product was not updated due to a processing error.


Windows 2000, Windows XP, Windows 2003 Server, Windows Vista, Windows 7, Windows Server 2008.

Symantec AntiVirus 10.x
Symantec Endpoint Protection 11.x
Symantec Endpoint Protection 12.x


A firewall or proxy server is filtering the content updates. Because of this, the data stream is broken / corrupted.


Set exclusions in the firewall and/or proxy for the Symantec LiveUpdate Server domains.

  • (http)
  • (http)
  • (ftp)

The above domains are listed in the Settings.Liveupdate file, under the HOSTS section.

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