Hi, thanks for the reply. I tested a bit more on my side before responding.
The version check fails when connecting normally from the U.S. (I tested on two different ISPs: Spectrum and T-Mobile Home Internet). The game only loads if I connect through a VPN endpoint in Europe (I used Mullvad with a Stockholm server).
That suggests the request to your update/version server may be blocking or rejecting certain IP ranges rather than the ISP blocking your server. Since the game launches normally once the VPN is active, the executable itself seems fine.
You may want to check firewall, geo-blocking, or hosting provider filtering rules on the server that handles the version check.
Just passing along the information in case it helps diagnose the issue.