Summary

Here’s a summary of the content found on the 502 Bad Gateway Microsoft-Azure-Application-Gatewayv2 webpage:

This page details the 502 Bad Gateway error, specifically when it occurs within a Microsoft Azure Application Gateway v2 environment. It explains that a 502 error indicates the Application Gateway was unable to reach the backend server(s) it was configured to use. This can be caused by a variety of issues including:

* Backend Server Unavailability: The backend server(s) themselves may be down, unresponsive, or experiencing issues.
* Network Connectivity Problems: There might be network problems preventing the Application Gateway from communicating with the backend servers.
* Application Gateway Configuration Issues: Incorrect settings within the Application Gateway, such as misconfigured health probes or routing rules, can trigger this error.
* Scaling Issues: Issues with scaling of the backend servers can also contribute to the error.

The page provides troubleshooting steps, including checking backend server health probes, verifying network connectivity, reviewing Application Gateway configuration, and examining Azure Monitor logs for further insights. It emphasizes the importance of diagnosing the root cause to resolve the problem effectively.

Title

502 Bad Gateway

Description

502 Bad Gateway

Keywords

gateway, azure, application

NS Lookup

A 20.234.19.161

Dates

Created 2026-02-15

Updated 2026-02-15

Summarized 2026-03-01