Article ID: kb00017Last Modified: 15-Oct-2026

Collecting HAR Logs

Situation

If an issue is encountered when using an MSP360 service that is accessed through a web browser (such as Managed Backup Service or Office Backup portal), sharing a set of HAR (stands for "HTTP Archive Viewer") logs with our support team would be very beneficial for a quicker examination and resolution of the underlying problem.

If an error such as "Something has gone wrong" appears during a certain action, or a significant and prolonged slowdown of the web service is observed (which persists in incognito/private mode of the current web browser, under another web browser, and under a different network), please follow the instructions below in preparation for contacting our support team.

Solution

Applicable to Google Chrome (version 133.0.6943.142 and newer)

  1. Prepare the web browser for HAR log capture by pressing F12 -> navigating to the "Network" tab on the opened side panel -> selecting the "Preserve log" check box and removing any existing records with the "Clear network log" button (or "CTRL + L" combination):

  1. Reproduce the issue that you have encountered;

  2. Use the "Export HAR" button to save the log:

  1. Submit the resulting file to our support team for further analysis.

Applicable to Microsoft Edge (version 133.0.3065.92 and newer)

  1. Prepare the web browser for HAR log capture by navigating to the main menu ("three dots" button) -> "Other Tools" category -> "Developer Tools" (or "CTRL + SHIFT + I" combination) -> "Network" tab -> selecting the "Preserve log" check box and removing any existing records with the "Clear network log" button (similarly to the Google Chrome instructions above);

  2. Reproduce the issue that you have encountered;

  3. Use the "Export HAR" button to save the log;

  4. Submit the resulting file to our support team for further analysis.

Applicable to Mozilla Firefox

  1. Prepare the web browser for HAR log capture by navigating to the main menu -> "Web Developer" category -> "Network" (Developer Network Tool) -> "Network" tab (clear any existing log records if possible before you proceed with the next step);

  2. Reproduce the issue that you have encountered;

  3. Right-click any area on the "Developer Network Tool" panel and select the "Save All As HAR" option;

  4. Submit the resulting file to our support team for further analysis.

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