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domainpleanala.ie
summaryHere'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 within the context of Microsoft Azure Application Gateway v2. It explains that a 502 error signifies the Application Gateway was unable to obtain a valid response from an upstream server (like an internal application, another Azure service, or a third-party service) it needed to fulfill the request.

Key takeaways include:

* Root Cause: The most common cause is the upstream server being unavailable, overloaded, or experiencing a temporary issue.
* Troubleshooting Steps: The page provides a prioritized list of troubleshooting steps, beginning with basic checks (like verifying the upstream server status) and escalating to more advanced solutions like checking application logs, network connectivity, and Application Gateway configuration.
* Common Causes Breakdown: Specific potential causes are listed, including timeout issues, connectivity problems, and application errors on the backend.
* Monitoring & Diagnostics: It emphasizes the importance of utilizing Azure Monitor and Application Insights for deeper diagnostics and correlation.
* Configuration Considerations: The page notes that improper health probe configurations or incorrect upstream target settings can also contribute to the error.

Essentially, the 502 Bad Gateway error indicates a communication failure between the Application Gateway and its backend, and this page guides users through diagnosing and resolving that issue.
title502 Bad Gateway
description502 Bad Gateway
keywordsgateway, azure, application
upstreams
downstreams
nslookupA 4.209.63.195
created2025-11-09
updated2025-11-09
summarized2026-02-07

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