LiveUpdate sessions on a Symantec Endpoint Protection Manager (SEPM), Symantec Endpoint Protection client, or other Enterprise product fail. Error 1835 appears in the logs.
When you run LiveUpdate, you see the following error message:
LU1835: Connection to the LiveUpdate server failed. The LiveUpdate server failed to respond in a reasonable amount of time. This could happen because you could not connect to the server, the server is now unavailable, or you became disconnected from the server. Try running LiveUpdate again.
Before you begin: This document is intended for use with Symantec Enterprise products. If you use a Norton product for home or home office, read Error: "LU1835: Connection to the LiveUpdate server failed".
This problem has more than one cause, so more than one solution is provided. To fix the problem, try each of the following solutions in the order that they appear.
If the LiveUpdate client is required to connect to the Public LiveUpdate servers through a proxy server, ensure that the proxy connection information is properly configured for LiveUpdate via the LiveUpdate control panel, or the LiveUpdate policy for products calling LiveUpdate.
This problem can happen when a proxy or firewall holds the content that LiveUpdate requested for longer than LiveUpdate's default time-out value. Because some networks scan files at the perimeter, Symantec added a configurable time-out value to LiveUpdate version 2.5 and later. For details on how to modify this value, please see The LiveUpdate session exited with a return code of 1835: Error - The LiveUpdate server failed to respond in a reasonable amount of time.
Rights and permissions
This error message appears if LiveUpdate does not have the correct rights and permissions to pass through the firewall. On Windows, LiveUpdate requires administrator-level rights.
Presence of a legacy file
The presence of the legacy file S32LUHL1.DLL can cause this problem. Look for the S32LUHL1.DLLfile in the following folders and then rename the file, if found:
LiveUpdate needs access to the following TCP ports:
This problem can happen when the files that LiveUpdate uses become damaged. Delete the contents of the Downloads folder, and then run LiveUpdate again.
To delete the contents of the Downloads folder
A proxy server is present in the envionment.