CnC Ultimate - RA2 cdkey bug

Hi, we are unable 2 play Red Alert 2 on network due 2 a bug where all how install it from CnC-Untimate seems to get the same cdkey.

We tried 2 uninstall and also changing the CD-key manually in the regedit.

Every time we try 2 join a game its say "Same serial#".

We can all hang out in the lobby and chat, the network works fine, there are no closed ports.