If you get the error message below when you login to Cornèrtrader:

1. Make sure your Internet connection is working normally. Open your browser and try to visit any website, possibly one you don't have in your recent navigation history, to see if it loads without any problems;
2. Reboot the router. Some routers have a switch off/on power button, but most often you will have to simply unplug the power cable for about 20 seconds. Once you plug the router back in, it might take a couple of minutes for the connection to be re-established. Now please try again to login;
3. Make sure the Firewall/Antivirus have our platform included in the trusted applications. Note: when you add Cornèrtrader, also look for IitClientStation2.