Symantec LiveUpdate Download Failed: How to Troubleshoot and Resolve
Symantec LiveUpdate Download Failed: How to Fix It
If you use Symantec products to protect your computer from viruses, malware, and other threats, you may have encountered the error message "Symantec LiveUpdate download failed" when trying to update your software. This can be frustrating and potentially risky, as it means that your Symantec products are not getting the latest updates and may not be able to detect or prevent new attacks. In this article, we will explain what Symantec LiveUpdate is, why it is important, what are the common causes of LiveUpdate download failure, and how to troubleshoot and fix it.
What is Symantec LiveUpdate and why is it important?
Symantec LiveUpdate is a tool that downloads and installs the latest updates for Symantec products
Symantec LiveUpdate is a feature that allows an installed Symantec product to connect to a Symantec server over the Internet and check for program and other updates, such as virus definitions, URL lists, IPS signatures, etc. When updates are available, LiveUpdate downloads them to your computer and installs them, keeping your Symantec software up to date.
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LiveUpdate ensures that your Symantec products have the most current protection against threats and vulnerabilities
Symantec products depend on current information to protect your computer from newly discovered threats and vulnerabilities. Symantec makes this information available through LiveUpdate. Content updates are the files that keep your Symantec products current with the latest threat protection technology. The content updates that you receive depend on which protections are installed on your computer. For example, LiveUpdate downloads virus definition files for Virus and Spyware Protection and IPS definition files for Network Threat Protection.
LiveUpdate can also provide improvements to the installed client on an as-needed basis. These improvements are usually created to extend the operating system or hardware compatibility, adjust performance issues, or fix product errors.
What are the common causes of Symantec LiveUpdate download failure?
Network connectivity issues
One of the most common reasons why LiveUpdate fails to download updates is because of network connectivity issues. If your computer is not connected to the Internet or has a slow or unstable connection, LiveUpdate may not be able to reach the Symantec server or complete the download process. You may also encounter network errors such as "the download has timed out" or "failed to select server".
Firewall or proxy settings blocking LiveUpdate access
Another possible cause of LiveUpdate download failure is firewall or proxy settings that block or restrict LiveUpdate access. If you have a firewall or proxy server on your network or computer, you need to make sure that they allow LiveUpdate to connect to the following URLs:
You may also need to configure your firewall or proxy settings in your Symantec Endpoint Protection Manager (SEPM) or client to use a proxy server to download content via LiveUpdate.
Corrupt or outdated LiveUpdate files or definitions
Sometimes, LiveUpdate may fail to download updates because of corrupt or outdated LiveUpdate files or definitions on your computer. These files may prevent LiveUpdate from connecting to the Symantec server or installing the updates correctly. You may see error messages such as "LiveUpdate encountered one or more errors" or "LiveUpdate failed to install the update".
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Misconfigured or incompatible LiveUpdate policies or settings
Another potential cause of LiveUpdate download failure is misconfigured or incompatible LiveUpdate policies or settings on your SEPM or client. For example, if you have a LiveUpdate policy that specifies a different server than the one that LiveUpdate is trying to connect to, or if you have a LiveUpdate setting that is not supported by your Symantec product, you may encounter problems with downloading updates. You may also see error messages such as "LiveUpdate could not access its settings" or "LiveUpdate is not allowed by the administrator".
How to troubleshoot and fix Symantec LiveUpdate download failure?
Check your network connection and internet access
The first step to troubleshoot and fix LiveUpdate download failure is to check your network connection and internet access. Make sure that your computer is connected to the Internet and that you can access other websites. You can also try to ping the Symantec server by opening a command prompt and typing ping liveupdate.symantecliveupdate.com. If you get a reply, it means that your network connection is working. If you get a request timed out or destination host unreachable, it means that there is a problem with your network connection.
Verify your firewall or proxy settings and allow LiveUpdate access
The next step is to verify your firewall or proxy settings and allow LiveUpdate access. If you have a firewall or proxy server on your network or computer, you need to make sure that they allow LiveUpdate to connect to the following URLs:
You can also configure your firewall or proxy settings in your SEPM or client to use a proxy server to download content via LiveUpdate. To do this, follow these steps:
Open the SEPM console or the client interface.
Click Admin > Servers > Local Site > Edit Site Properties > LiveUpdate.
Select Use a proxy server for HTTP connections and enter the proxy server address and port number.
Remove corrupt or outdated LiveUpdate files or definitions and run LiveUpdate again
The third step is to remove corrupt or outdated LiveUpdate files or definitions and run LiveUpdate again. To do this, follow these steps:
Navigate to the following folder on your computer: C:\ProgramData\Symantec\LiveUpdate\Downloads (for Windows Vista/7/8/10) or C:\Documents and Settings\All Users\Application Data\Symantec\LiveUpdate\Downloads (for Windows XP).
Delete all the files in this folder.
Navigate to the following folder on your computer: C:\Program Files (x86)\Symantec\LiveUpdate (for 64-bit Windows) or C:\Program Files\Symantec\LiveUpdate (for 32-bit Windows).
Delete the following files: Product.Inventory.Liveupdate, Settings.Liveupdate, and S32LUHL1.dll.
Run LiveUpdate again and see if it works.
Check your LiveUpdate policies and settings and make sure they are correct and compatible
The fourth step is to check your LiveUpdate policies and settings and make sure they are correct and compatible. You can use the SEPM console or the client interface to view and modify your LiveUpdate policies and settings. Some of the things you need to check are:
The source of updates: You can choose to download updates from the Symantec server, an internal LiveUpdate server, or a file on a network share. Make sure that the source you select is available and accessible.
The schedule of updates: You can choose to run LiveUpdate automatically or manually. If you choose to run it automatically, you can specify the frequency and time of updates. Make sure that the schedule you set is appropriate for