@fthompson251 You only need ethernet for your Aurender to function.
You connect to your Aurender using WIFI so you need your Aurender’s MAC address, can’t help you there I only use Windows.
It’s important to connect using WIFI so you can re-name and organise folders and name tags. I like to change double and triple album CDs to a single CD.
Just rip your CDs directly to your 512GB thumb drive then put it in the rear USB slot of the Aurender and use the Conductor app to copy to your 2TB SSD.
2TB is 2 Million GB, a CD is around 650GB so 2T divided by 650GB equals 3000 CDs.
If you need more storage buy another 2TB or 4TB and put it in the second Aurender slot. You can copy from Slot1 to Slot2 BUT these SSDs are formatted using Aurender’s software so you can’t take them out and play them someplace else.
I’d keep your 512GB thumbdrive as a backup, buy another when it’s full.