Application Insights portal connectivity issues
This article discusses how to resolve connectivity issues (such as the "Error retrieving data" message, time-outs, and loading failures) that occur within the Microsoft Azure Application Insights portal.
Symptoms
On an Application Insights portal page (such as the Failures page or the Performance page), you see error messages such as "Error retrieving data" or "Missing localization resource" for charts that don't load.
Cause
The web browser couldn't call into a required API, or the API returned a failure response. These problems can occur because of a network failure, a back-end failure, or interference from a browser extension.
Solution
To fix the issue, follow these steps:
Open an InPrivate window in the Microsoft Edge web browser (or open an Incognito window in Google Chrome).
Temporarily disable any browser extensions that are running.
Check whether you can reproduce the portal connectivity error in the browser. (One or more browser extensions might be preventing the expected behavior.)
Try to reproduce the portal connectivity error in other browsers, on other computers or virtual machines (VMs), or in other user sessions.
Investigate whether any DNS or other network-related issues exist on the client device on which the portal page doesn't load within the browser.
If the portal error persists and requires further investigations, Capture a browser trace for troubleshooting while you reproduce the unexpected portal behavior. Then, you can report the incident to Microsoft Support.
Contact us for help
If you have questions or need help, create a support request, or ask Azure community support. You can also submit product feedback to Azure feedback community.