Well I already have jellyfin running in a container, just have to figure out how to get mum's TV to work with it I guess
log in on a local IP and not the network name and it's working again. but I'll be moving to jellyfin from now
It means the same specific subnet. If you have multiple subnets (one for wired, one for wireless for example) it will also trigger that limitation unless you go in and manually tell it hey these are local.