CNC generals ZH lan network

[Gaman]

I have a problem playing ZH on lan on network.
Evrytime we start we get a Mismatch.
I dont use any mods and we both have the latest updates.
We play with one CD with different serials.
If we play the normal generals it works fine.:confused:
plz help me

[Joe Forster/STA]

Does it work with two CD's?

[Gaman]

yes i can take out a cd on a computer and it still works.