Internet radio listings

Hi There, I have an Internet station and I received a message from one of my listeners saying that she can no longer tune in via her "Logitech inet radio" (which I assume must be a Squeezebox). She said that the display now says that the connection timed out. I was not aware that the station was even listed and it doesn't sound like the listener is technically able to have added it manually so I'm wondering where the listing would have come from and if there's any way I could update it.

Any advice would be appreciated.