If connectivity is limited and only the local network is available, you will see an exclamation mark above the network icon or Wi-Fi icon. If you can connect and you do not have a limited Internet connection, or if you do not want to be notified, Windows cannot display this exclamation mark.
To disable this yellow triangle exclamation mark , start the ‘Run’ dialog box by pressing Win+R in combination. In the empty field , type regedit and press Enter to open the Registry Editor. When UAC prompts you, press ‘Yes’.