Fix user-scoped Windows Firewall rules after a recent Chrome update

This is caused by Chrome’s Network Service Sandbox, which is the process running with a restricted token to improve security. On the other hand, it limits the ability to filter network connections by a user.

reg add HKLM\SOFTWARE\Policies\Google\Chrome /v NetworkServiceSandboxEnabled /t REG_DWORD /d 0 /f

Check that Chrome sees the setting (no restat needed):

• Visit chrome://policy/
• Click Reload policies
• See NetworkServiceSandboxEnabled appears with policy value false

Restart Chrome.

See:

• https://support.google.com/chrome/a/answer/10314655#132&zippy=%2Cchrome#:~:text=Network%20Service%20sandboxed%20on%20Windows
• https://chromeenterprise.google/policies/#NetworkServiceSandboxEnabled