I'll try that!

I found that I have a Mac that can run FileBot and successfully make the changes, so I'll just use that other machine for this work. I'd like to figure out why this happens, though.

I made all the other interfaces inactive, and now WiFi is the only active interface. ifconfig tells me that en0 is inactive, and that en2 is active. It really likes assigning WiFi to en2.

I don't know how to disable an interface. When I looked up interfaces I found an Apple utility called Network Utility that tells me that en0 is a Thunderbolt interface, so is en1. en2 is my WiFi connection.

en2: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500 options=400<CHANNEL_IO> ether 4c:32:75:92:a4:43 inet6 fe80:: 18d4:9fa0:9d01:7456%en2 prefixlen 64 secured scopeid 0x4 inet 10.0.1.28 netmask 0xffffff00 broadcast 10.0.1.255 nd6 options=201<PERFORMNUD,DAD> media: autoselect ...

Thank you for the reply!

I have a mid-2015 MacBook Pro, MacOS 10.15.6, and FileBot 4.9.1.

ifconfig tells me a lot of things that I don't know how to read or report back...

I recently bought FileBot from the Apple App Store and it seems to do many things, but not rename files. When I try to rename the files I get an error message that says java.lang.IllegalStateException: Receipt Hash: IOMACAddress I downloaded the Mac version from here before buying at the Apple App ...