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LiveUpdate fails with LU1803: LiveUpdate failed while getting your updates

Created: 09 Dec 2008 • Updated: 11 Jun 2010 | 13 comments
This issue has been solved. See solution.

Out of the blue I receive "LU1803: LiveUpdate failed while getting your updates" errors.

Eventlog shows me the following errors:

Event id 16: Download of virus definition file from LiveUpdate server failed. 00000001

Event id 16: Manual LiveUpdate failed to download Virus Definitions.

Opening Symantec LiveUpdate in Control Panel gives error "LiveUpdate could not access its settings. Error Code: 0x00000000"


Have not been able to fix this error so far.


This PC is running on Windows Vista Ultimate x64 (latest updates), has a Intel Quad core Q6600 with 4Gb of mem. Uninstall and reinstall of Symantec Antivirus Corporate Edition has no effect. Errors remain. Tried to delete the liveupdate.settings file, no effect.


Strange thing is that is did function after clean install of this PC which means that something must has changed so that LU fails now.


UAC is enabled, SAV installation has been done from an administrator cmd prompt.


Any idea anyone?

Comments 13 CommentsJump to latest comment

astroheart's picture

i have a similar problem with norton internet security online. my vista is 32 bit

Grant_Hall's picture

Hi Astroheart,

Just wanted to let you know that you posted in the SEP forums, which is a seperate and different product from the Norton products. You are more likely to find your answer in the Norton forums found here Also just to let you know, you should try not to tag your post on the end of other peoples posts (especially one that is this old). The reason I say that is because our forums only let you post things like screen shots or log files if you are the thread owner.


Please don't forget to mark your thread solved with whatever answer helped you : )

Mick2009's picture

Hi Edwink,

Here's an article which deals with a error on the SEPM.  The error code in that article's screenshot is a little different, but its suggestions (bypassing the proxy, reinstalling LU, etc ) are likely also applicable to SAV 10.2.

LiveUpdate fails with an Error: LU1803

Bypassing a hardware firewall may also help, if one has been put in place.

Also see this one:

Error: "Download of virus definition file from LiveUpdate server failed. 00000001" when LiveUpdate runs on a Symantec AntiVirus Corporate Edition server

There are likely be be additional helpful messages in the Windows Application Events logs.  Do previous update attempts succeed?  Do subsequent update attempts work?  Even better material will be found in the log.liveupdate- that will be able to tell a Technical Support Engineer what exactly the problem is.

From where exactly does this SAV 10.2 computer receive its updates?  Is it from the Internet?  From an internal LUA 2.x server?

Final note: is pretty old at this stage.  I do recommend migrating to the latest available MR for 10.2 (MR3) to take advantage of the latest improvements and enhancements.

Thanks and best regards,


With thanks and best regards,


wjjpfx's picture

coveman, thanks a lot.  The link you provided helped me in solving this problem.   I went through the trouble of registering to this forum just to say "THANKS!!!"

Danbobo's picture

It did not work on win7 buddy. Do you have another link for Win7 tool for LU1803 error?

beachboy1b's picture

hey  coveman.  thanks.  that link totaly fixed what was wrong.  and it took less then 2 min.  i really appreciate that. I actually subscribed to this to thank you.  thanks again

Danbobo's picture

The tool is not working on Win7. It did not delete the files nor reinstall LU.

Rayq's picture

Tool doesn't work for server 2008, or xp. I have this problem on two of the machines I have been monitoring. I have ran this tool on another machine it worked fine, but for these it doesn't work. Any other tools or easy fixes?

phlaz's picture

Yup, it doesnt work on Win7. Come on guys, we need a solution for this. Dodgy antivirus issues are no joke! Not being able to update virus definitions is pretty serious. Thanks to everyone actively involved in this.