App Control: Agent Upgrades Failing with Error "Failed to Download Upgrade Package - Invalid File Format"
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App Control: Agent Upgrades Failing with Error "Failed to Download Upgrade Package - Invalid File Format"

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Article ID: 286752

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Updated On:

Products

Carbon Black App Control (formerly Cb Protection)

Issue/Introduction

When upgrading Agents through the Console the following error is seen on the computer details page:
Agent upgrade: Failed to download upgrade package: https://CBSERVER/hostpkg/pkg.php?pkg=/ParityHostAgent.msi. Invalid file format.
This error happened 48 time(s)

Environment

  • App Control Agent: All Supported Versions
  • App Control Server: All Supported Versions

Cause

The specified MSI file does not exist at the URL specified.

Resolution

  1. Verify the Resource Download Location specified is correct.
  2. Verify the files exist in the Resource Download Location (by default this is in \Parity Server\hostpkg\ on the application server). If missing, re-upload the Agent Installer.

Additional Information

Agent versions prior to 8.1.8 encountered this error when in a Disabled Enforcement.