If the file is unreadable, open the file with a zip utility.If a firewall modified the file, an administrative alert may be visible in plain text or the file may be empty.Open the Livetri.zip file with Notepad.LiveUpdate cannot download updates until you fix this problem. If you cannot download this file, confirm that your firewall does not block this site.Download the current Livetri.zip file from the Symantec Web site.The server addresses are not static and, consequently, routing directly to an IP address may cause LiveUpdate to fail.ĭownload a Livetri.zip file to troubleshoot possible corruption Note: Symantec does not supply IP addresses for Symantec LiveUpdate servers. If LiveUpdate cannot make an HTTP connection, LiveUpdate connects via FTP to /opt/content/onramp.The listed domains may change because of server maintenance. If a connection fails, LiveUpdate tries to connect to one of the other listed domains.LiveUpdate connects via HTTP to the domains, , and.
The default folder for this file is C:\Program Files\Symantec\LiveUpdate.The file that connects to the Internet is LuComServer_*_*.exe in LiveUpdate 2.5 and later and Lucomserver.exe in LiveUpdate 2.0 and earlier.LiveUpdate connects over TCP ports 80 (HTTP), 21 (FTP) and 443 (HTTPS).Read your firewall's documentation or contact the manufacturer to find out how to confirm these settings. Make sure that the firewall allows the LiveUpdate executable to connect to the Internet through the correct ports and that the firewall allows connections to the correct domains. Confirm that the correct ports and protocols are available for LiveUpdate
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