NCSI: No Internet access reported

[Gittyperson]

This is most probably a Windows bug, but I can confirm that when applying the WindowsSpyBlocker NCSI, Windows 10 2004 will report there is no Internet connection (connection still works fine). Reverting to the Microsoft NCSI, fixes the wrong warning message.

[Gittyperson]

Connection works fine, although it seems some Microsoft-releated software will not work properly or at all (Store Apps, Office etc.)

[crazy-max]

Hi @Gittyperson,

Indeed, now pastebin redirects http to https so our custom NCSI is broken. Will fix that on next release.

[ViRb3]

May I recommend using another platform's internet connectivity check endpoint to avoid similar problems in the future.

• Google (e.g. Android): http://connectivitycheck.gstatic.com | reference
• Apple (e.g. iOS): http://captive.apple.com | reference

[liamengland1]

Firefox: http://detectportal.firefox.com/

[ViRb3]

I vouch for Firefox's, as it's the simplest and safest (see last paragraph) to use. Here's how to do it by hand for the eager ones:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NlaSvc\Parameters\Internet]
"ActiveWebProbeContent"="success
"
"ActiveWebProbeContentV6"="success
"
"ActiveWebProbeHost"="detectportal.firefox.com"
"ActiveWebProbeHostV6"="detectportal.firefox.com"
"ActiveWebProbePath"="/"
"ActiveWebProbePathV6"="/"

Note that there's a /n at the end of the success message, that's 0a 00 as binary.

Apple and Google return HTML responses which may cause issues with Windows now or in the future.

[crazy-max]

@ViRb3 LGTM, thanks for your input

[crazy-max]

Fixed: https://github.com/crazy-max/WindowsSpyBlocker/releases/tag/4.31.0