Hi @andrew_sell,
You have my sincere apologies for the troubles here. Just to clarify, if you’re already logged out, you will need an internet connection to login. But once you’re logged in, you can close and reopen Roon without the need for an internet connection for weeks before needing an internet connection.
If you were already logged in, then something else occurred which caused you to require an internet connection. So we can take a closer look at what occurred, I was hoping for now you could use the directions found here and send us over a set of logs using a shared Dropbox link.
Again you have our apologies for the difficulties here, Andrew.