LCS 2005 with proxy, can get pass the proxy.

Hello
Well, i have a DC with LCS installed.
And a proxy too go through, the problem is that i cant get pass the proxy.
I can connect locally to LCS via proxy and client and log in, but when i try outside the proxy it doesent work, it cant find the LCS server.

it looks like this.
LCS ----------------------------- Proxy ----------------------------------Internet
192.168.21.1 192.168.21.11 - external ip external ip

I have followed the guide "LCS_2005_SE_Quick_Start".
Anyone have any tips?

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