Enable permissions for file access and notifications within app settings. For syncing or email issues, verify your mobile connection or switch between WiFi and cellular data. Reinstall the app if problems persist using Microsoft’s compatibility mailbox not updating on IMAP manuals. Larger files may cause a temporary slowdown, so ensure your device has adequate memory.

How do I fix the ‘Product Activation Failed’ error in Microsoft 365?

By verifying the basics—correct credentials, valid license assignments, and stable network access—you’ll often fix the issue without delving into more complex solutions. Clearing cached credentials, running a repair, or using the Microsoft Support and Recovery Assistant (SaRA) can also address common local device issues. Verify that you’re logged into mailbox not updating on imap the correct Microsoft account both in OneDrive and Office apps. If syncing is paused, resume it from the OneDrive system tray icon.

Recover your account

If the issue persists, Microsoft has created a dedicated tool called Microsoft Support and Recovery Assistant (SaRA) to automate many troubleshooting tasks. The tool will ask you to enter the email address or mobile phone number you're trying to sign in with and check the details you provide. If we detect a problem with your account, we'll tell you what you need to do to solve the problem.

3 Step 3: Verify Network Connectivity and Firewall Settings

• Combine these best practices with ongoing training and proactive license management, and you’ll be well on your way to a stable, secure Office 365 environment.
• If you’re still stuck, reboot your computer and try the installation again, preferably during off-peak internet hours.
• Sometimes cached credentials on your device or a corrupted Office profile can lead to repeated sign-in prompts or activation failures.
• Below is a structured approach to diagnosing and resolving Office 365 sign-in or activation errors.
• If we don't detect any problem, we'll guide you through how you can help yourself.
• If these connections are disrupted, sign-in and activation will fail.
• Regularly cleaning up your hard drive or upgrading hardware like RAM can also enhance performance.

If you are using an outdated web browser or Office app, it can create compatibility issues, which eventually lead to Microsoft 365 sign-in problems. Make sure to update them to the latest version and try again to fix Microsoft 365 login issues. If you are still unsure about the right password and are facing Microsoft 365 login issues, use the Forgot Password option to reset your password.

Microsoft 365 Troubleshooting – Quick Fixes for Common Problems

Use the Microsoft 365 activation troubleshooter to resolve Microsoft 365 subscription activation issues. Slow performance flush DNS and re-sync Outlook can be due to heavy CPU usage or low available memory. Close unused tabs, background processes, or applications to free up system resources.