Hi everyone. Have a real BIG problem. Please help! We try to activate license and this error is appear: "Could not contact license key server - please check internet connection" We can activate license from another server in our local network. But from Win Server 2003 R2 isn't. Win Firewall is Off. We haven't antivirus soft. In wireshark logs we see that 3CX is connect with lic server but after TLS handshake connection is failed. Have somebody any idea?!