I've just tried to reconnect after over a year to the cnc online platform for Kane's Wrath. However, the game starts up and in the online log-in screen, it says 'cannot connect to backend server'.
I'm using a Steam installation for the game on Window 10Pro.
Have got his from running the test file:
Using server nntest.cnc-online.net:30000
Bound to local port 51653
Bound to local alternate port 51654
Resolving hostname 'nntest.cnc-online.net'...
Resolved server host to be '18.104.22.168'
Sending client INIT from port 51653 to nntest.cnc-online.net:30000
Received server INIT 
Our public address is 22.214.171.124:51653
Sending client INIT2  from port 51654 to nntest.cnc-online.net:30000
Received server INIT2 
Our alternate public address is 126.96.36.199:51654
Sending cient START  from port 51654 to nntest.cnc-online.net:30000
Received server START 
Server extra port is 40000
Sending client PING  from port 51653 to nntest.cnc-online.net:40000
Received server PING(2) 
Received server PING(3) 
Received server PING(4) 
Received 3 pings from nntest.cnc-online.net:40000.
NAT negotiation works with your router and connection.
==> You do not have to use port forwarding.
Press any key to continue . . .