I just downloaded Sandbox, and I can't get beyond the "Logging In" screen. The loading bar goes all the way up, it makes the happy little boop sound, and a few seconds later, the bar turns red. I get the message "Check your Internet connection!"
My Internet connection is fine, and other games will log in.
OS: OS X Yosemite 10.10.3
Device: Macbook Pro
Internet Connection: WiFi
Any ideas?