Windows 7 and 8.0 bug: Network icon is marked as "no internet access"

Question

When does windows mark network connection icon as having no internet access?

I have internet access, but the icon says I don't. If I run troubleshooter, it finds no any problems. But the icon still says no internet access (yellow triangle with exclamation mark).

UPDATE

Problem manifestates on several computers in the LAN, so it is not network card dependent.

Also problem is related with Windows Store operation: Windows 7 and 8.0 bug: Store: PC is not connected to Internet, try again later

Also problem disappears on Windows 8.1, so this is a bug of Windows 8.0

PixEye · Answer

If there is a "plane mode" under your Windows device, you can use it (turn it on and then off) to refresh this icon without rebooting. It works fine under my Windows 7 laptop.

Of course, you will have to repeat this every time you face the problem but it is a quick and easy way to proceed.

Kelon · Answer

In my case (Windows 10), it seemed to be an invalid local certificate created by an old installment (maybe created by Fiddler?) which I had on Windows 8 before I upgraded to Windows 10.

Go to:

Control Panel -> Internet Options -> Content -> Certificates ->
Personal 
Check if you have a certificate with status invalid 
Remove it.
Reboot.

Scorpion99 · Answer

Try the following :
Go to Computer -> System properties -> Device Manager --> Network adapters: double-click this entry in the list

Now Right-click your network adapter (or wireless adapter) --> Uninstall … BUT LEAVE "UNCHECKED" the box marked “Delete the driver software for this device”
After uninstalling, the Device Manager list refreshes. In the blue area near the top of the screen, click Actions, then Scan for hardware changes.This should reinstall the network adapter, and the device driver software for it.
Restart your PC.

Windows 7 and 8.0 bug: Network icon is marked as "no internet access"

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