As another Mac/TimeCapsule/Buffalo LinkStation Live LS-CHL user who has struggled with this (and on a previous Buffalo Link Station Live HSDH500GL) for months -
Thank you for a clear, polite and correct response.
The difficulty is that there are too many network/port/ip/mac addresses floating around.
I've seen responses on this forum and on Apple's that state "well just forward port 9000"
This is like saying "well just google it - the answer is out there somewhere.
The critical step is to use the correct "ip" specifically the "Private IP Address" in the Time Capsule (router) Advanced settings. This is easily found by using the Buffalo NASNavigator2 - which I suggest everyone download and use .
My settings are
where the 1.0.1.184 is the address of my LinkStation. I imagine that if you reset your cable modem or router, or otherwise change your network configuration, that this internal IP address could change.
Thank you again for all of your help