Ebuddy would be creating a .tar that also allow a tool of ours to pull some additional info that would help me verify its WAN connection. Can you please take a new back up using ebuddy and include support files. This will make it a lot easier for me to sort out what you are doing with the device.
From what I can see the WAN interface for either device is not getting the 192.168.220.xx address that you are trying to reach. The WAN interfaces both appear not is it in that subnet.
Why do you have a NAT route setup on one device and as well as a proxy setup on both of them one is pointing to the 192.168.220.44 address and the other 10.0.0.53. This is most likely added from the FTP connection you are setting up. The reason this is most likely not working is sing the modem IP’s are not what you are expecting or the private network is not what is expected.
Deryck