Problem with Firewall SUA

I'm new to this area so please bear with me.

I have a Zywall 10w that i used to be able to access by using

Today in the Zywall configuration i changed a settiing in the SUA server tab. I changed the default server to the ip address of our internal server.

Now i cannot access the Zywall using

Anyone help??
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Guess you're going to have to access via the console port using a serial cable and something like HyperTerminal on a PC.
You'll have to go to NAT setup and either change Rule 1 so that the default server is the original IP address or add another rule for start and end port 8001 for the original IP address. -  I've got this from reading the manual :)

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