Still not fix ‘no internet’ connection bug in Windows 10 2004 (OS Build 19041.546)

Question

I ever posted this issue on MS TechNet and someone told me that it’s a bug on version 2004 from Microsoft. Then nothing can do.

So I tried this.
“HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NlaSvc\Parameters\Internet”
Modify “EnableActiveProbing” and change the value from ‘0’ to ‘1’.

Result: Not help. It only works successfully for every several computer start.

Recently, I find this bug is fixed from below info.

Update fixes Windows 10 bug that ruins your internet connection
https://www.windowslatest.com/2020/10/02/update-fixes-windows-10-bug-that-ruins-your-internet-connection/

https://support.microsoft.com/en-us/help/4577063/windows-10-update-kb4577063

• Addresses an issue that might prevent applications from opening or cause other errors when applications use Windows APIs to check for internet connectivity and the network icon incorrectly displays “No internet access” in the notification area. This issue occurs if you use a group policy or local network configuration to disable active probing for the Network Connectivity Status Indicator (NCSI). This also occurs if active probing fails to use a proxy and passive probes fail to detect internet connectivity.

After upgrade my PC to OS Build 19041.56. The issue is not solved. It only works normal for every several computer start.
If 'no internet' issue happens, I can't syn email normally on Outlook / Open onedrive files from Excel / Spotify app failed.

Please help.

p.s. How can I get email notification if someone answer from this new forum?

Answer 1

Hi ,

Thanks for your updating. Have you checked HKLM\Software\Policies\Microsoft\Windows\NetworkConnectivityStatusIndicator to see if there any registry keys?

Find a solution. If I connected Surfshark VPN and access Internet, then disconnect VPN. It will return to normal. 'No internet' issue will be disappeared.

Good to hear that you have solved this issue by yourself. In addition, thanks for sharing your solution in the forum as it would be helpful to anyone who encounters similar issues.

In addition ,if there is no specific event/error about the problem, it is hard for us to analyze root cause from forum support level . In such case, we need to trace network monitor to find any clues. Unfortunately, analysis of network traffic is beyond our forum support level. If the issue is urgent and you want to find the root cause, I would suggest you open a case with Microsoft where more in-depth investigation can be done so that you would get a more satisfying explanation and solution to this issue.

Here is the link:

https://support.microsoft.com/en-us/gp/customer-service-phone-numbers

Best Regards,
Candy

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Answer 2

Hello!

Recently I've encountered this issue at someone's PC. And used this topic as one of sources for troubleshooting and fixing. Thanks to all contributors here.\

Worked for me but only temporary(

Go to

HKEY_LOCAL_MACHINE\SOFTWARE\POLICIES\MICROSOFT\Windows\NetworkConnectivityStatusIndicator

and create DWORD parameter "UseGlobalDNS" equals 1

Go to

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\NetworkList\Profiles\

There select your main connection, you can understand which one by its name and change DWORD parameter "Managed" from 0 to 1.

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Answer 3

hello, i had the exact same problem... we use a proxy server on our company and we couldnt use some microsoft service like o365, teams, etc because "windows" detects no internet connection although it is connected so i made a troubleshoot via group policy...

Note: We use Mcafee Web Gateway... we couldnt find a solution via proxy.

Go to regedit [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NlaSvc\Parameters\Internet] you will see active probe like this:

"ActiveDnsProbeContent"="ACTIVE DIRECTORY IP GOES HERE"
"ActiveDnsProbeContentV6"="ACTIVE DIRECTORY IP GOES HERE"
"ActiveDnsProbeHost"="ACTIVE DIRECTORY DNS GOES HERE"
"ActiveDnsProbeHostV6"="ACTIVE DIRECTORY DNS GOES HERE"

Windows does a ping comprobation so if you change to a local pinging address it will bypass.

"ActiveWebProbeContent"="Microsoft Connect Test"
"ActiveWebProbeContentV6"="Microsoft Connect Test"

"ActiveWebProbeHost"="webtest.com"
"ActiveWebProbeHostV6"="webtest.com"
At this point i made a webpage on a iis server (you can do it local).
Microsoft makes another comprobation with a text file as you can see below

"ActiveWebProbePath"="connecttest.txt"
"ActiveWebProbePathV6"="connecttest.txt"

"CaptivePortalTimer"=dword:00000000
"CaptivePortalTimerBackOffIncrementsInSeconds"=dword:00000005
"CaptivePortalTimerMaxInSeconds"=dword:0000001e
"EnableActiveProbing"=dword:00000001
"PassivePollPeriod"=dword:0000000f
"StaleThreshold"=dword:0000001e
WebTimeout"=dword:00000023

After that restart your pc and it always will be "connected"

I hope it work for you, sorry for my eng.

Answer 4

We had the problem in an enterprise environment where logically a proxy server is running. After weeks trying different scenarios we found a solution. The regkey for ActiveProbing must be enabled (1), Outlook365 needs it.
The proxy server authenticates the user and the computer cannot connect to the Internet, so the test is not successful.
We solved the problem by adding a rule to the firewall. Outgoing for port 80 to *.msftconnecttest.com, now the clients can reach the URL and the test is successful.

Answer 5

After trying many many things we finally seem to have found the solution and the reason why this happened to us. NSCI doesn't probe the loopback address. We have DNS forwarding through the endpoints loopback. The below registry key has stopped this occurring for all users its been tested on for at least 4 weeks now, so I'm hopeful we now have an explanation and a solution:

reg add "HKEY_LOCAL_MACHINE\SOFTWARE\POLICIES\MICROSOFT\Windows\NetworkConnectivityStatusIndicator" /v UseGlobalDNS /t REG_DWORD /d 1 /f