"The requested media URL is banned" message when adding a local video stream to media player

When I try to add the URL for a video stream that I’m hosting locally via VLC Media Player to the in-game media player, I instead get a notification saying “The requested media URL is banned”. Is this because the URL I’m putting in is an IP address?

Also I think it’s worth noting that I’m trying this in my condo, not the plaza theater.