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[Bug] Interactive Login Slow When Opening Browser with VPN Enabled. #5259

@narendran-dev

Description

@narendran-dev

Library version used

4.69.1.0

.NET version

.NET 8.0.8

Scenario

PublicClient - desktop app

Is this a new or an existing app?

The app is in production, I haven't upgraded MSAL, but started seeing this issue

Issue description and reproduction steps

After migrating to Msal.net, we are experiencing significant delays when performing an interactive login, particularly when the customer's VPN is enabled. The issue manifests as a slow browser startup during the login process.

Instance discovery was disabled in an attempt to resolve the issue, but the delay persists.

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Expected behavior

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Identity provider

Microsoft Entra ID (Work and School accounts and Personal Microsoft accounts)

Regression

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Solution and workarounds

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