Antivirus Interference detected

Solution: Traffic is being blocked by something (Anti-cheat, Anti-virus, Malware):
- Fully delete anti-virus + other anti-cheats - sometimes disabling it is not enough, it requires full uninstallation;
- Scan your PC with some tools to make sure that your computer is not infected. (Example of the tool for scan: https://free.drweb.ru/cureit/)