Office Installation Errors

How to Fix Office 2019 ODT Download HTTP Transport Errors

Maira Mehtab Sep 28, 2026 869 views

Question details

The Office Deployment Tool (ODT) is failing to download Office 2019 Professional Plus due to an HTTP transport error, despite successfully downloading other versions like Office 2021 and 2024.

Product: Microsoft Office 2019 Professional Plus
Device & OS: not provided
Scenario: Downloading offline installation files using the Office Deployment Tool (ODT) via an XML configuration.
Observed behavior: The download process halts with an HTTP transport error specifically for Office 2019, while newer Office versions bypass this issue and download successfully.

Before you start

Verify that your computer has a stable internet connection and temporarily disable any strict network firewalls or VPNs that might be blocking Microsoft's Content Delivery Network (CDN).

Solution 1Recommended

Validate and Reconfigure the ODT XML File

Incorrect syntax or unnecessary file paths in your configuration file can trigger transport errors during the download.

A common cause of ODT download failures is a misconfigured XML file. Even a small syntax error or an invalid SourcePath can prevent the tool from reaching Microsoft's servers properly.

Check XML Formatting in Edge

Right-click your configuration XML file, select 'Open with', and choose Microsoft Edge. If the browser displays an XML parsing error, fix the syntax mistakes in a text editor.

Remove the SourcePath Attribute

Open the XML file in Notepad. If you are downloading the files to the same local folder where 'setup.exe' is located, delete the 'SourcePath' attribute entirely to prevent routing conflicts.

Generate a New Configuration

Navigate to https://config.office.com/ in your browser and use the official Office Customization Tool to generate a fresh, error-free XML configuration file for Office 2019.

Deployment Tool Versions: Always ensure you are using the latest version of the Office Deployment Tool downloaded from the official Microsoft Download Center, as older versions may lack support for newer CDN endpoints.

Solution 2

Clear the Office Installation Cache using SaRA

Corrupted cached files from previous installation attempts can prevent the ODT from downloading new files successfully.

Solution 3

Test the Download on an Alternative Network

Since other Office versions download fine, localized network routing issues to specific Microsoft servers might be responsible.

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Frequently Asked Questions

Why does the ODT throw an HTTP transport error for Office 2019 but not 2021?

The Office Deployment Tool routes requests to different Microsoft Content Delivery Network (CDN) servers depending on the exact Office version and build requested. A network block, temporary server outage, or incorrect XML tag specific to the 2019 repository can trigger this error.

Should I keep the SourcePath attribute in my ODT XML file?

If you are downloading the installation files directly to the same directory where your ODT 'setup.exe' is located, you should remove the SourcePath attribute. Leaving it in without specifying a valid, reachable directory often causes HTTP or path resolution errors.

What does the SaRAcmd.exe OfficeScrubScenario command do?

This command-line parameter for the Microsoft Support and Recovery Assistant aggressively removes all traces of previous Office installations. It clears registry keys, corrupted cached files, and leftover directories that might be interfering with your new ODT download.

Installation & Activation