InternetCheckConnection always return false

Question

I want to use the wininet function InternetCheckConnection to check whenever the machine is connected to the internet and can access a specific host. The problem is that this function is always returning false, no matter the URL I put on it.

MSDN link

Answer 1

Just a wild guess, but perhaps this is due to a personal firewall blocking all outgoing connections for one of the Windows DLLs and / or your application?

Answer 2

Have you checked GetLastError() ? If I read MSDN correctly, you would need to check for ERROR_NOT_CONNECTED to determine whether you're truly offline.