1: Turn off antivirus and firewall, and then try to log in. If so, modify the blacklist in the firewall.
2. See if you have changed the settings for logging in to the main market station, agent settings and green channel options, and see if it is successful by selecting or canceling.
3: Not yet, uninstall and delete the directory, and reinstall.
4. Never reinstall the operating system.
good luck