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How to troubleshoot DAT file update failures
Technical Articles ID:   KB86218
Last Modified:  12/7/2015
Rated:


Environment

McAfee VirusScan Enterprise (VSE) 8.x
McAfee Agent 4.x, 5.x 

Summary

There are various reasons why DAT files might fail to update. Perform the steps in this article to help identify the cause and either resolve or work around the issue.

Solution

Open a web browser and attempt to reach http://update.nai.com. If you are unable to access this page, validate all system network settings.

If you are able to reach update.nai.com, verify that the system is able to download the DAT file directly from McAfee:
  1. Open the VirusScan Console.
  2. Select Tools, then select Edit Autoupdate Repository List.
  3. De-select all boxes except McAfee HTTP.
  4. Run an AutoUpdate.
Verify the system is able to download the file from the ePolicy Orchestrator (ePO) server:
  1. Open the VirusScan Console.
  2. Select Tools, then select Edit Autoupdate Repository List…
  3. De-select all boxes except McAfee ePO.
  4. Run an AutoUpdate.
If you are able to update from McAfee directly and from the ePO server, but not your normal repository, verify that the repository is reachable from the system and has the latest DAT file.

Solution

Re-deploy the McAfee agent using the steps in the appropriate McAfee Agent Product Guide:

McAfee Agent 5.x: PD25187
McAfee Agent 4.x: PD24333

WARNING: Reinstalling the McAfee Agent could result in a duplicate system appearing in the ePO System Tree. If this occurs, manually re-add Tags, Policies and Tasks Assigned to a Single System, and Encryption Users.

Workaround

Locally install the DAT file using the steps in KB51679.

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