The message that Office has no internet connection when opening files is usually caused by a Windows service being disabled or by a general connectivity problem on the device.
Try these steps on the Windows PC where Office is installed:
- Verify Windows can reach the network
- Make sure other apps (for example, a web browser) can open websites.
- If the network itself is down or unstable, fix that first and then try Office again.
- Check the Network List Service
Office can show “No Internet Connection” or similar errors if the Network List Service is stopped or disabled.
- Select Start, type
services.msc, and press Enter.
- In the Services window, find Network List Service.
- Double‑click Network List Service.
- If the service is Stopped, select Start.
- Ensure Startup type is not set to Disabled (set it to Manual or Automatic if needed), then select OK.
- Close the Services window and try opening the Office file again.
- If opening from a network or SharePoint/OneDrive location
- If the file is on SharePoint, OneDrive, or a network share, confirm that location is reachable (for example, open the same file in a browser or via File Explorer).
- If the network location is offline or slow, Office may fail to open the file and show network‑related errors. Try copying the file locally and opening it from the local drive.
If the issue persists after confirming general internet access and starting Network List Service, further troubleshooting of Windows networking or Office installation may be required.
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