You may want to configure Transperant Proxy even you are not conected to VPN. You will not be asked for user/pass in case of connected to VPN, however, credentials will be asked if you setup proxy on your browser and you are not connected through VPN.
Please consider to download CERTIFICATE FILE and follow the instructions from STEP-5 in order to configure properly.
Enter Control Panel
Open "Control Panel" from Start menu.
Click on "Internet Options".
Click "Connections" and then "LAN settings".
Do configuration as shown below and then click "Advanced" tab.
You may either use Auto-detect proxy settings with this address: https://veripn.com/proxy.pac or one of the adresses on Step 6 for manual:
Signup for free to obtain an account. Open your web browser and type any web address you want to browse, immidiately an username and password window should appear. Enter your VeriPN.com username and pasword to continue.