Nick,
That all makes sense. I need to work out an issue with my ISP first. Apparently my DSL modem has router functionality and when I try to put my Time Capsule in "DHCP and NAT" mode I am getting "Double NAT" errors. So I have a repair ticket in to get my modem/router set to bridge mode. Then the Time Capsule can handle all NAT functions and I should be able to get going.
Once that is all complete, I will follow your guidelines and hopefully that will take care of the issue. I should probably have done this a while ago...
I'll post my progress.
Thanks again.
EDIT: The modem/router is a Comtrend AR-5381U. If anyone knows how to get into the config and set to bridge mode, I might be able to circumvent the repair request with the ISP. I don't see why I shouldn't be able to get into it and make the change on my own...even if I don't really know what I'm doing.