I suddenly can't load my New Outlook program.. I'm getting this message: Hmmm… can't reach this page outlook.office.com took too long to respond Try: Checking the connection Checking the proxy and the firewall ERR_TIMED_OUT

Test Outlook in a web browser and on a different network first; this determines whether the timeout is caused by a wider Microsoft service issue, your current connection, or only the New Outlook app.

1. Isolate where the timeout occurs

1. Open Edge or Chrome and visit https://outlook.com.
2. Also open microsoft.com or bing.com.
3. If possible, temporarily connect the PC to a phone hotspot and test Outlook again.

Microsoft recommends testing ordinary Microsoft websites first when Outlook cannot connect.^1^

Use the matching result below.

If Outlook fails everywhere, but other websites work

This can indicate an Outlook/Microsoft 365 service incident rather than a damaged application.

• Check Microsoft’s current Office/Outlook issues page.^2^
• If this is a work or school account, ask the Microsoft 365 administrator to check Microsoft 365 admin center → Health → Service health. That is the tenant-specific status source.
• If an incident is listed, no local reinstall or reset is likely to help; wait for Microsoft to mark it resolved.

If Outlook works through the hotspot but not your normal connection

The normal network is timing out or filtering Microsoft 365 traffic.

1. Disconnect any VPN temporarily.
2. Restart the modem/router:
   • Unplug both for at least 30 seconds.
   • Reconnect the modem and wait for it to stabilize.
   • Reconnect the router, wait a few minutes, and retest.
3. Check Settings → Network & Internet → Proxy. If you do not intentionally use a proxy, turn off Use a proxy server.
4. Temporarily pause third-party web filtering or antivirus HTTPS inspection only long enough to test. Re-enable it immediately afterward.
5. If it is a managed network, give the network administrator the result that Outlook works on the hotspot. Microsoft recommends allowing current Microsoft 365 endpoints rather than using hard-coded or indirect-domain allowlists, which can cause connectivity failures.^3^

If the browser works but only New Outlook fails

Repair the application itself:

1. Right-click Start → Task Manager.
2. Select Microsoft Outlook → End task.
3. Reopen New Outlook.

If it still times out:

1. Open Start, locate new Outlook for Windows, expand its options, and select Uninstall.
2. Restart Windows.
3. Open Microsoft Store, find New Outlook for Windows, and select Get.
4. Open it and add the account when prompted.

These are Microsoft’s documented New Outlook restart and reinstall procedures.^4^

Do not run Classic Outlook profile, PST, safe-mode, or add-in troubleshooters for this problem. Microsoft states that the Classic Outlook troubleshooters do not apply to New Outlook.^5^

If no websites load reliably

Run the Windows network troubleshooter:

• Windows 11: Open Get Help, search for Network and Internet troubleshooter, and run it.
• Windows 10: Go to Start → Settings → Network & Internet → Status → Network troubleshooter.

Microsoft also documents restarting the router, reconnecting Wi-Fi, and resetting Windows networking if the automated troubleshooter does not resolve it.^6^

If Outlook still times out in both the browser and New Outlook across multiple networks, contact Microsoft Support; that result rules out an app-only failure and most local-network causes.

References

1. I can't send or receive messages in Outlook | Microsoft Support
2. Fixes or workarounds for recent Office issues | Microsoft Support
3. Managing Microsoft 365 endpoints
4. Outlook for Windows not responding, hangs, freezes, or stops working
5. Resolve Outlook for Windows issues with automated troubleshooting tools | Microsoft Support
6. Fix Wi-Fi connection issues in Windows