How does Windows know when your Internet connection (but not your LAN connection) goes down?
56179
How does Windows know whether it has internet access or if a Wi-Fi connection requires in-browser authentication?
93702
Checking network connection
92413
Disable internet access but leave LAN working
56849
How to prevent process from knowing Network is up?
100018
Internet connection lost when I close fiddler
29696
How can I monitor internet usage in my network?
129861
Avoid automatically connecting to wireless network on windows 7
96962
How passively monitor for tcp packet loss? (Linux)
76759
Logging individual application network usage in Windows 7
51875
Check if Internet Connection Exists with Ruby?
64579
Why does connecting to my work VPN cause my internet to not work?
85458
How to check the Internet connection with .NET, C#, and WPF
41884
How are connections differentiated from behind NAT routers?
25987
How to test router-to-PC connection speed?
128126
How do you determine if an interface is a physical LAN port on a Windows PC?
15346
When using a VPN, would my ISP still be able to read my internet traffic?
34054
Windows 7 shows red "X" on network icon, but I'm connected