@j03y_ Thanks - that worked well. Did you see my other post about how the media server won't play m4a files? It plays only the mp3 files.

@Tony Oh, ok thank you - so they just don't use the term "MAC Address Filter" - They just call it "Access Control". So it looks like i just slide the "Access Control" button to enable it, then change...

@IrvSp Thanks for your response, but my Roku Soundbridge has been playing my entire iTunes library - both mp3 and m4a - for 16 years, and so did my previous Cisco/Linksys EA4500 router's media...

Where is the MAC address filter in AX3000? I didn't find it in the menus or in the User Guide. thanks, js.

hi, I find that my Roku Soundbridge can play the mp3 files on the USB drive plugged in to my AX3000, but it cannot play the .m4a files. (The Soundbridge plays the same .m4a files from iTunes fine.)...