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See the image to understand what I mean. The machine displays no internet on the wifi id display(see image) but there is a connection that still exists. I've been witnessing the same behavior on pretty much at least 30 Win 10 machines so far.

enter image description here

Totti
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    Delete (forget) the connection and remake it. That will normally solve the issue (and does for me.) – John Feb 04 '21 at 15:24
  • that is a good temporary solution. I need something more concrete and permanent. – Totti Feb 04 '21 at 15:25
  • start here to understand how windows makes the determination that its connected or not: https://superuser.com/questions/277923/how-does-windows-know-whether-it-has-internet-access-or-if-a-wi-fi-connection-re – Frank Thomas Feb 04 '21 at 15:34
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    Delete your wireless profiles (netsh wlan delete profile name="profile name" for all wireless profiles. Restart, remake your main wireless profile and that should be permanent. – John Feb 04 '21 at 15:43
  • What is in common with these 30 machines – Ramhound Feb 04 '21 at 16:15
  • looks like it is relative to this but am still investigating.

    https://answers.microsoft.com/en-us/windows/forum/all/windows-10-says-i-have-no-internet-connection-but/50153e5b-a008-443d-af0e-5ee3822c37a1?auth=1&page=9

     – Totti Feb 04 '21 at 16:31
  • @Ramhound Windows 10 OS 1903 build and higher and it doesnt happen in other OS's or smartphones – Totti Feb 04 '21 at 16:38
  • Yes; Clear out your wireless profiles. The same access point appears to be listed multiple times. – Ramhound Feb 04 '21 at 17:26
  • "The same access point appears to be listed multiple times" - False and look again – Totti Feb 05 '21 at 03:04

1 Answers1

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Your issue is that NCSI reports no internet. NCSI primarily gets it work done through the use of network probes - a simple network request to an endpoint followed by a response. There are many different types of probes including active, passive, corporate, proxy, default gateway, and others. In addition some probes are done via HTTP, DNS, or both.

If NCSI sends the probe and receives a valid response it considers the client machine internet-connected.

You could try modify the following registry key to see if the issue can be resolved.

[Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\NetworkConnectivityStatusIndicator] NoActiveProbe set to 0 (should either not present or value must be 0)

Restart the machine and see if NCSI still reports no internet.

Sunny
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