It appears the AT&T modem is also a router. You need to find out if you can bridge this modem/router to be only a modem. What is the process by which ads are changed on these Raspberry Pi's?
I was planning just playing MP4 files on a loop from the Pi. To update the files we would just have to replace the MP4 file with the updates one.It appears the AT&T modem is also a router. You need to find out if you can bridge this modem/router to be only a modem. What is the process by which ads are changed on these Raspberry Pi's?