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How to Fix Microsoft 365 iOS Error 2604 (No Network)
Question details
The user is unable to use Microsoft 365 on iOS because the app displays Error 2604, falsely reporting no network connection.
- Product
- Microsoft 365
- Device & OS
- iOS (iPhone/iPad)
- Scenario
- Attempting to open, edit, or save documents in the Microsoft 365 app while connected to a working network.
- Observed behavior
- The Microsoft 365 application throws Error 2604 indicating 'no network connection', preventing the user from accessing or saving files despite having functional internet.
Verify that your iPhone or iPad has a stable internet connection by loading a webpage in Safari, and ensure your Microsoft 365 subscription account is currently active.
Install Standalone Office Apps to Bypass the Unified App Error
Downloading dedicated apps like Word or Excel directly from the App Store bypasses the authentication glitches found in the all-in-one Microsoft 365 app.
The unified Microsoft 365 app on iOS sometimes fails to communicate with Microsoft's authentication servers, triggering Error 2604. Using individual applications typically resolves this issue.
Open the iOS App Store, search for 'Microsoft Word' (or Excel/PowerPoint depending on your needs), and download the standalone application directly to your iPad or iPhone.
Open your device's Settings app, scroll down and tap on 'Safari'. Navigate to 'Extensions' and then tap 'More Extensions' to prompt iOS to refresh app link handlers.
Launch the newly installed Microsoft Word app and sign in using your Microsoft 365 credentials (such as your student or work account). You should now be able to edit and save documents without the network error.
Edit Documents on iOS Seamlessly with WPS Office
If Microsoft 365 network errors continue to disrupt your workflow on your iPhone or iPad, switch to WPS Office. It provides a lightweight, free alternative that allows you to easily edit, save, and manage your files without frustrating login bugs.
- 1. Open the App Store: Launch the App Store on your iPhone or iPad.
- 2. Download WPS Office: Search for 'WPS Office' and tap the download button to install the free app.
- 3. Start Editing Instantly: Open WPS Office and seamlessly edit your Microsoft Office files without needing complex network logins.
Frequently Asked Questions
Why am I getting Error 2604 when my Wi-Fi works perfectly?
Error 2604 in the Microsoft 365 app is typically an internal software glitch related to server authentication rather than an actual physical network failure. The app fails to verify your license and mistakenly reports it as a network disconnection.
Will installing the standalone Word app fix the issue for Excel too?
If you need to edit spreadsheets, you will also need to download the standalone Microsoft Excel app from the App Store. The workaround bypasses the centralized Microsoft 365 app hub entirely.
Do I have to keep the unified Microsoft 365 app installed?
No. If the standalone apps (Word, Excel, PowerPoint) work flawlessly for your workflow, you can uninstall the unified Microsoft 365 app from your iOS device to save storage space and avoid recurring errors.
Why do the steps mention navigating to Safari Extensions?
Accessing the Safari Extensions menu forces the iOS system to refresh its background handling of web tokens and deep links, which often helps the standalone Microsoft apps authenticate your account without triggering the false offline bug.
