Hello,
how reply several time by support request.
Update Windows (if you can use Windows 10).
Install all software required:
Disable your antivirus/firewall before to download WRobot and install WRobot.
Try to disable proxy, use a VPN
If your problem is not resolved: https://wrobot.eu/forums/topic/1381-repairinstall-wrobot/#comment-966
And I would be curious to know why your key is used if you can not use WRobot?