Using Outlook for Android for personal email and calendar management
Welcome Diane,
Thanks for providing those details. Since your Hotmail account works normally in a web browser but Outlook on your iPhone no longer syncs and now cannot sign in, the issue appears to be isolated to the Outlook mobile app or the sign-in process on the device.
Before we narrow this down further, could you confirm:
- When you try to sign in, do you receive the message "unable to process the request at this time" immediately, or after entering your password?
- Are you using any VPN, private relay, ad blocker, or custom DNS service on the iPhone?
- Does the same sign-in failure occur on both Wi‑Fi and cellular data?
In the meantime, please try these quick checks:
- Open Safari on the iPhone and sign in to your Hotmail account at Outlook.com. Make sure there are no security prompts, account verification requests, or unusual activity warnings waiting for approval.
- Go to Settings > General > Date & Time and verify Set Automatically is enabled.
- Temporarily disable any VPN, iCloud Private Relay, ad-blocking, or network filtering apps, then try signing in to Outlook again.
- If possible, try adding the account while connected to a different network (for example, switch from Wi‑Fi to cellular data, or vice versa).
If the answer is helpful, please click "Yes". If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.