I just purchased a 2013 MacBook Air to replace an existing 2009 MacBook Pro. The MBP was regularly backed up to a Time Capsule, also purchased in 2009. I began setting up the MBA last night, and chose to use Setup Assistant, backing up from the Time Capsule. I chose to use this because I had purchased a USB-Ethernet adapter that would allow me to connect the Time Capsule and the MBA using an ethernet cable, whereas I don't have a Thunderbolt-Firewire adapter to connect the two computers. The Time Capsule does not serve as a router, it simply connects to my existing WiFi network. However, the time estimated by Setup Assistant is huge - when I first began last night, it was estimating between 40 and 50 hours; this morning (about 8 hours later), it is alternating between around 28 hours and 29 hours, with the time estimated frequently shifting. I'm concerned that perhaps the MBA has connected with the Time Capsule via Wifi rather than the ethernet cable - how would I know if this is the case? When I connected to the Time Capsule, it did ask for my password to connect to something like "NameofmyTimeCapsule.server", and in hindsight I'm wondering if that connected them via WiFi rather than the cable. Or is it possible that I'm using the wrong ethernet cable and that's why it's so slow, in which case should I purchase a different kind (and if so, could I just swap them out, or would I need to restart the backup)? For reference, the size of my backup on the Time Capsule is about exactly 200 GB. Thank you for any help!