Windows 10: NCSI No internet symbol

Hello there,This issue has been driving me mad for weeks.I have thought dozens of internet pages and checked everything that I can think of but on some computers almost all of them laptops I get the no internet symbol, event though internet is just fine.The best reference I have found from MS is this one:https://docs.microsoft.com/en-US/troubleshoot/windows-client/networking/internet-explorer-edge-open-connect-corporate-public-networkI have done all the checks described and everything seems to be fine. This happens only on the corporate network domain, sometimes it shows on the wifi adapte

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Network Connection Status Indicator (NCSI) Showing No Internet, but Browsing Works Fine.

I am using a Fortigate 100D UTM with 65 PCs connected. 22 of them have this issue. All the PCs are on the same Network / Domain so I find it hard to believe that there is a problem with the Router / UTM Firewall as all PCs would
be showing the same NCSI error.

As for your remaining suggestions; I've done all of these things, multiple times on several different PCs and all returned the same results - NCSI thinks there is No Internet but clicking on the icon resolves the issue, albeit
temporarily (several hours). Windows Troubleshooter does not find anything wrong with the Network Connection or Internet Connection.

If there were issues with the Firewall, NIC, or AV the "No Internet" issue would remain regardless. Clicking on the NCSI icon initiates a probe of the Internet via WinHTTP and the results of that probe satisfies NCSI requirements
and the status is changed.

Do you have any information or perhaps a script to test NCSI using WinHTTP?

 

NCSI Causes no internet issue

I am having a mostly intermittent issue on computers running Windows 10 Pro, Version 2004.

Sometimes the computer shows the globe in the bottom right of the task bar stating no internet connectivity, while there is actually internet connectivity. This is causing issues with certain applications such as communication between Outlook 365 and SharePoint.
I have tried all the following steps:

- uninstall network driver and let windows 10 reinstall

- EnableActiveProbing regedit fix

- Flush DNS

- Disconnect from network and reconnect

Sometimes these actions will fix the issue, however it always comes back. Is there a known permanent solution to NCSI?

 

Windows 2004 Force NCSI to say it has internet

Like many other posters here, I have run into issues where the computer thinks it does not have internet due to NCSI failing, even though the computer does in fact have internet. The is causing Office authentication to fail. Is there a way to force NCSI
to think that it always has internet? The computer is always connected to the internet, so false positives won't be an issue.