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Sign-in & Login Problems

How to Fix a White Screen When Signing In to Project for the Web

Steve KSteve K Oct 10, 2026 869 views

Question details

The user encounters a blank white screen when attempting to log in to Project for the web and needs to resolve the issue to manage or cancel their subscription.

How to Fix a White Screen When Signing In to Project for the Web
Product
Microsoft Project for the web
Device & OS
not provided
Scenario
Signing in to access project management dashboards or cancel an active Microsoft subscription.
Observed behavior
The screen goes completely white on mobile devices and shows an unresponsive page on PC, preventing access to the account dashboard and cancellation options.
Before you start

Ensure you have a stable internet connection and your Microsoft account credentials ready. If you intend to cancel your subscription, confirm whether you are subscribed to Project Plan 1 or Project Plan 3 beforehand.

Solution 1Recommended

Troubleshoot Browser Settings and Cache

Resolve page loading conflicts by clearing stored browser data and disabling extensions.

A white screen during sign-in is often caused by corrupted cookies, outdated cache, or interference from third-party browser extensions.

1
Open an InPrivate or Incognito window

Launch your web browser and open a private browsing window to bypass existing cookies and saved session data.

2
Clear cache and cookies

Navigate to your browser's history or privacy settings and clear all cached images, files, and cookies for all time.

3
Disable browser extensions

Turn off any ad-blockers, privacy extensions, or script blockers that might interfere with Microsoft's authentication process.

Troubleshoot Browser Settings and Cache
Try an alternative browser: If clearing the cache does not work, attempt to log in using a completely different web browser to rule out browser-specific bugs.
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Frequently Asked Questions

Why does Project for the web show a blank white screen on my phone?

A white screen on mobile is typically caused by an outdated mobile browser cache, unsupported mobile browser versions, or network restrictions that block Microsoft's authentication scripts from loading properly.

Can I cancel my Microsoft Project subscription without logging in?

Direct self-service cancellation requires access to your Microsoft account dashboard. If you cannot log in due to a persistent white screen, you must contact Microsoft Support directly to have an agent manually process the cancellation.

Does using the App Launcher method fix the white screen permanently?

Routing through the Microsoft 365 App Launcher bypasses specific URL routing issues and forces a fresh authentication token. While it may not fix the underlying browser issue permanently, it provides a reliable workaround to access your project dashboard.