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gregaryb's avatar
gregaryb
Copper Contributor
May 06, 2026

IIS on Windows 10 no longer serving my websites

My websites were working, i.e. I could access them on my mobile phone. But something has happened abd they are not longer accessible - "NOT FOUND" I have checked:  The bindings - https, corre...
https
IIS
windows 10
Harold-Picado's avatar
Harold-Picado
Tin Contributor
Jul 14, 2026

Hi,

 

Since the sites were working before and now you are getting "Not Found", the request is most likely reaching IIS, but IIS is not matching the request to the correct site or content.

I would check the following:

  1. Review IIS logsC:\inetpub\logs\LogFilesVerify if the request from your mobile phone appears in the logs. If it does, DNS and connectivity are probably OK, and the issue is inside IIS.
  2. Check:
  3. Verify IIS bindingsSites → Your Site → BindingsConfirm:
    • HTTPS is using port 443
    • The hostname matches the domain exactly
    • The correct SSL certificate is assigned
    • No other site is using the same HTTPS binding
  4. In IIS Manager:
  5. Check the physical pathSite → Basic Settings → Physical PathMake sure the folder still exists and IIS has permissions to read it.
  6. Verify that the website points to the correct folder:
  7. Test locally on the serverhttps://yourdomain.com https://localhostIf localhost also returns 404, the problem is IIS configuration rather than DNS.
  8. Try:
  9. Check DNS from an external machinenis not matching the request.