# DNS_HOSTNAME_SERVER_ERROR

The `DNS_HOSTNAME_SERVER_ERROR` error occurs when attempting to connect to a private IP from an external rewrite. This error typically means that the DNS server was unable to fulfill the DNS request due to an internal issue or misconfiguration.

## Troubleshoot

To troubleshoot this error, follow these steps:

1. **Review DNS configuration:** Check the [DNS configuration](/docs/domains/working-with-dns) to ensure it's correctly set up and doesn't contain any errors or misconfigurations
2. **Inspect network connectivity:** Ensure that there are no network issues that could be affecting the DNS resolution
3. **Check DNS server logs:** Review the logs of the DNS server for any warnings or errors that might indicate what's causing the issue
4. **Verify domain registration:** Ensure that the domain has been [registered](/docs/domains/working-with-domains/view-and-search-domains) and is currently active


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title: "EDGE_FUNCTION_INVOCATION_FAILED"
description: "The request for a Edge Function was not completed successfully. This is an application error."
last_updated: "2026-02-03T02:58:41.703Z"
source: "https://vercel.com/docs/errors/EDGE_FUNCTION_INVOCATION_FAILED"
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