Hallo guys,
I have found the reason for the problem with playing online zero hour!
The reason is: I have several versions of zero hour (I have the ultimate edition, the first decade edition and the normal zero-hour cd-version) - and I have tried to play c&c zero hour with nodvd version of first decade!
Because I was tired to put the cd in the player, I have put the nodvd version of first decade into the directory of zero hour.
In the past there was no problem to play with gamespy with this version. But the new online servers of c&c-online have problem with this version.
I have uninstall zero hour and installed with the "normal" generals.exe
Now, I have to put the cd in the player, but I can play online :-) !!!!
Attention: After I have had the online-problem, I had to delete the files in the directory "C:\Users\xxxxx\Documents\Command & Conquer Generäle Stunde Null Data\GeneralsOnline"
Because, although I had make a new installation of zero hour, the game won't online play. After I have deleted the files in the e.g. directory, than I could play online !!!!