Yes, tiberian sun is working properly. I can join, and run games.
red alert was working, we had two glorious days of gaming on it, my friend in my house had an issue connecting to me to play yuris revenge so I uninstalled everything and reinstalled hoping that a fresh install would fix it. it is exactly as you described, it runs the cncnet, i can join the lobby, both online and lan. i can see my friends game, jjoin the lobby, and he launches game, immediately i can see his screen bring up the game, my launcher shows that its doing something, but nothing opens until he has timed out. I have installed to C:/Games, as administrator, and I had no antivirus running except windefender until I began having this issue - we are both connecting on the same router. I dont know if this could affect anything.
But thanks for your quick response FunkyFr3sh