BF 2142 problem

I have BF 2142 working fine on my main PC, which is connected directly to the internet. Another PC I have is connected to the internet via, microsoft's "internet connection Sharing ." Within a few seconds of joining a server I get the error message "connection to the server has been lost." It must be something to do with the fact im not connected directly to the internet. Does anybody have any idea's how I could get BF 2142 working?

Any help is greatly appreciated

thanks, Morten

Does that for me sometimes, I just click again and it works. No help here, sorry :(

Thanks for the help anyway, has anybody else got any ideas?