I'm running Crossover 16.0.0.30178 on OSX 10.10.5 with firewall disabled. I created a brand new bottle and let Crossover download the installer file itself. The installation completes without any issues but when I try to login to my Ubisoft account I get an error message stating that no connection to the Ubisoft service is available. I've tried to login across multiple days and have started over now twice, creating a new Uplay bottle from scratch with the same result.
I can't find any way to validate firewall settings or network settings within the bottle itself. Can anyone help? I can't use offline mode because it has never connected to the service so it has no idea what games I have. Steam works just fine on the same setup.