Offline Mode doesn't work without internet connection:
Could you tell me a bit more about what is happening?
Is there an error message? If so, what does it say?
Can you provide me with a screenshot of what you're seeing when you attempt to connect to Offline Mode without an internet connection?
Thanks for working with me on this.
Choosing your Offline stations with Pandora Plus:
At this time, Pandora Plus listeners cannot add, delete or swap out which stations will be available for offline listening. We know this is a feature a lot of our listeners would enjoy, so I'll pass this idea onto our product team to consider.
In the meantime, if you're wanting to have other offline stations available to you, try listening to those other stations more (ones that are currently not on your Offline station list). Since we periodically refresh the stations that are available to you offline (based on your listening habits), we may surprise you with adding them to your list!
Alternatively, you may consider upgrading to Pandora Premium which allows subscribers to download any station, playlist, album or song in their collection for offline listening.