Hello,
My friends and I have been trying to launch Kane's Wrath, whenever we get to the server login screen we all get an error message stating "No connection to Servers, check your internet connection" before getting kicked out of the login screen, We have been able to at least play C&C3 without issue while using the launcher. From what I understand we are both on Steam, Both of us are using Win10, neither are using a VPN (I tried with it on for giggles and got the same error).
Error that I got from the CNCOnline log file
Started game with: "CNC3EP1.exe "