[PR #4710] [Client] cleanup leftover dns and nrpt policies on windows #26114

New Issue

saavagebueno · 2026-08-05T07:06:54-04:00

saavagebueno commented

2026-08-05 07:06:54 -04:00

Original Pull Request: https://github.com/netbirdio/netbird/pull/4710

State: closed
Merged: No

Describe your changes

In some cases, the Windows client does not clean up DNS and NRPT policies in the registry.
This can break the user's DNS resolution when using split-horizon DNS.
If these entries are not properly removed, the user may lose access to domains configured under the split-horizon setup.

Issue ticket number and link

N/A

Stack

Windows

Checklist

Is it a bug fix
Is a typo/documentation fix
Is a feature enhancement
It is a refactor
Created tests that fail without the change (if possible)

By submitting this pull request, you confirm that you have read and agree to the terms of the Contributor License Agreement.

Documentation

Select exactly one:

I added/updated documentation for this change
Documentation is not needed for this change (explain why)
It happens in the uninstaller

Docs PR URL (required if "docs added" is checked)

Paste the PR link from https://github.com/netbirdio/docs here:

https://github.com/netbirdio/docs/pull/__

Summary by CodeRabbit

Bug Fixes
- Adds explicit DNS policy cleanup during uninstall to remove leftover DNS entries and improve network state
- Restarts the DNS client service as part of uninstall to ensure changes take effect
- Clarifies and preserves the user data deletion choice, adds a brief wait before final removal to avoid conflicts
- Improves uninstall logging and step sequencing for more reliable diagnostics

_{✏️ Tip: You can customize this high-level summary in your review settings.}

**Original Pull Request:** https://github.com/netbirdio/netbird/pull/4710 **State:** closed **Merged:** No --- ## Describe your changes In some cases, the Windows client does not clean up DNS and NRPT policies in the registry. This can break the user's DNS resolution when using split-horizon DNS. If these entries are not properly removed, the user may lose access to domains configured under the split-horizon setup. ## Issue ticket number and link N/A ## Stack Windows  ### Checklist - [x] Is it a bug fix - [ ] Is a typo/documentation fix - [ ] Is a feature enhancement - [ ] It is a refactor - [ ] Created tests that fail without the change (if possible) > By submitting this pull request, you confirm that you have read and agree to the terms of the [Contributor License Agreement](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTOR_LICENSE_AGREEMENT.md). ## Documentation Select exactly one: - [ ] I added/updated documentation for this change - [x] Documentation is **not needed** for this change (explain why) It happens in the uninstaller ### Docs PR URL (required if "docs added" is checked) Paste the PR link from https://github.com/netbirdio/docs here: https://github.com/netbirdio/docs/pull/__  ## Summary by CodeRabbit * **Bug Fixes** * Adds explicit DNS policy cleanup during uninstall to remove leftover DNS entries and improve network state * Restarts the DNS client service as part of uninstall to ensure changes take effect * Clarifies and preserves the user data deletion choice, adds a brief wait before final removal to avoid conflicts * Improves uninstall logging and step sequencing for more reliable diagnostics <sub>✏️ Tip: You can customize this high-level summary in your review settings.</sub>

saavagebueno added the pull-request label 2026-08-05 07:06:54 -04:00

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Reference: DYNR/netbird#26114