Diagnosing DNS Issues in C# to Access a Remote Page from a Windows Application | by Maksim Vialykh | Jan, 2025 – Medium

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Maksim Vialykh
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When developing a Windows application, you might encounter network connectivity problems that prevent your app from accessing remote pages. One common cause of such problems is a DNS issue. This article outlines how to use C# to diagnose DNS-related problems when accessing remote resources.
DNS (Domain Name System) translates human-readable domain names (like example.com) into IP addresses. If DNS resolution fails, your application won’t be able to connect to the remote server, even if the network is otherwise functioning.
Before diagnosing DNS issues, confirm basic network connectivity. Use the Ping class to check if the host is reachable by its domain name and IP address.
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