Sign-in & Login Problems

Fix Repeated Microsoft 365 and Copilot Sign-in Requests in Edge

Maira Mehtab Sep 22, 2026 869 views

Question details

The user is caught in a continuous authentication loop where Microsoft 365 and Copilot repeatedly prompt for sign-in, eventually displaying an error for too many sign-in attempts.

Product: Microsoft 365 and Microsoft Edge
Device & OS: Windows 10
Scenario: Trying to log into Microsoft 365 services and use Copilot features within the Microsoft Edge browser.
Observed behavior: The system constantly asks for authentication and reports too many sign-in attempts. Additionally, previous Copilot chat histories go missing in Edge.

Before you start

Ensure your network connection is stable and avoid making any further sign-in attempts for at least 30 minutes to prevent extending the temporary account lockout.

Solution 1Recommended

Wait and Verify Microsoft Account Status

Allowing the system's security cooldown to expire is often required when you receive a 'too many attempts' error.

When Microsoft detects too many consecutive sign-in attempts, it automatically throttles access to protect your account. Continued attempts will only reset the lockout timer.

Wait for the cooldown period

Stop attempting to log into Microsoft 365 and Copilot for at least 24 hours to clear the backend server throttle.

Verify account access

Navigate to account.microsoft.com in a private browsing window to verify if your credentials work normally outside of the Edge profile.

Solution 2

Test an Alternative Web Browser

Bypassing Microsoft Edge temporarily can help isolate if the issue is tied to a specific browser update or corrupted profile.

Solution 3

Clear Edge Browser Data and Check Updates

Clearing cached authentication tokens can resolve conflicts between the browser and Microsoft's sign-in servers.

Free Microsoft Office alternative

Try WPS Office as a Reliable Microsoft Alternative

If you are locked out of your Microsoft 365 account due to ongoing sign-in loops, try WPS Office. It provides a lightweight, highly compatible alternative for word processing, spreadsheets, and presentations without constant cloud authentication barriers.

1. Download the installer: Visit the official WPS website to download the free WPS Office installer for Windows.
2. Install the suite: Run the downloaded file and follow the quick on-screen instructions to install the software.
3. Open your documents: Launch WPS Office and directly open your existing Word, Excel, or PowerPoint files without needing a Microsoft account.

Seamlessly compatible with Microsoft Office formats (.docx, .xlsx, .pptx)Does not require constant online authentication for basic offline editingLightweight application that runs smoothly and quickly on Windows 10Familiar user interface that requires no learning curve to start working

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Frequently Asked Questions

Why is my Microsoft Copilot chat history missing in Edge?

Copilot chat history is tied to your active Microsoft account profile. If you are experiencing sign-in loops or authentication errors, the browser fails to sync your profile data, causing the history to temporarily disappear until the login issue is resolved.

How long should I wait after getting a 'too many sign-in attempts' error?

It is highly recommended to wait at least 24 hours before attempting to sign in again. Repeatedly trying to log in during this security cooldown can reset the timer and prolong your account lockout.

Will clearing my cache fix the Microsoft 365 login loop?

Clearing the cache and cookies can resolve the issue if corrupted authentication tokens are causing the loop. However, if the problem stems from a recent Edge browser update or a server-side block, clearing data may not work, and you might need to use a different browser like Chrome.

Login & Account Issues