Validation server not responding

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PLEASE HELP!!
I recently installed rhino 8 with the license for the 90days free trial and it worked just fine. Today i tried to install LUCHBOX and after this i get this VALIDATION SERVER NOT RESPONDING, also i cannot connect to https://api.mcneel.com/. I tried to open my firewall, restart, but no luck.

Hi
So if there is no windows “firewall rule”(for double check you can find rules in win 11 here :Navigate to Settings > Privacy & security > Windows Security > Firewall & network protection, and select Allow an app through firewall ) that block the connection , maybe is there a VPN that blocks the connection :thinking:
Do you have antivirus softwares or something like this?