[GH-ISSUE #3861] Failed to resolve custom DNS on Windows #8009

New Issue

saavagebueno · 2026-08-05T01:15:35-04:00

saavagebueno commented

2026-08-05 01:15:35 -04:00

Originally created by @madIlama on GitHub (May 22, 2025).
Original GitHub issue: https://github.com/netbirdio/netbird/issues/3861

Describe the problem

Failed to resolve custom DNS on Windows

To Reproduce

Steps to reproduce the behavior:

Setup custom nameserver, be it google,quad,cloudflare or custom in peer netbird DNS server
Connect on windows
Failed to resolve and apply DNS in wt0

Expected behavior
?. DNS applied ???

Are you using NetBird Cloud?

Yes,cloud

NetBird version

netbird version 0.45.1

Is any other VPN software installed?

No

Debug output

To help us resolve the problem, please attach the following anonymized status output

[WARNING] DNS (d106f08a-06de-4bfc-b6a0-90ff0921a542)
  Message: All upstream servers failed (probe failed)
  Time: 24 seconds ago
  Metadata: upstreams: 100.99.126.239:53, 1.1.1.1:53, 8.8.8.8:53

Originally created by @madIlama on GitHub (May 22, 2025). Original GitHub issue: https://github.com/netbirdio/netbird/issues/3861 **Describe the problem** Failed to resolve custom DNS on Windows **To Reproduce** Steps to reproduce the behavior: 1. Setup custom nameserver, be it google,quad,cloudflare or custom in peer netbird DNS server 2. Connect on windows 3. Failed to resolve and apply DNS in wt0 ![Image](https://github.com/user-attachments/assets/e392440d-5ba8-45f5-a2c3-1333fc192ab3) **Expected behavior** ?. DNS applied ??? **Are you using NetBird Cloud?** Yes,cloud **NetBird version** `netbird version 0.45.1` **Is any other VPN software installed?** No **Debug output** To help us resolve the problem, please attach the following anonymized status output ``` [WARNING] DNS (d106f08a-06de-4bfc-b6a0-90ff0921a542) Message: All upstream servers failed (probe failed) Time: 24 seconds ago Metadata: upstreams: 100.99.126.239:53, 1.1.1.1:53, 8.8.8.8:53 ```

saavagebueno added the triage-needed label 2026-08-05 01:15:35 -04:00

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Reference: DYNR/netbird#8009