Mac: Can not sign into Jump Desktop. "Connecting..." message does not go away

If you see the above message when trying to connect to into Jump Desktop for Mac, please try the following steps:

1. Make sure your internet connection is working by opening up Safari and trying to visit a website. 
2. Try restarting your Mac and see if it fixes the problem.
3. If the above do not work, try clearing Jump Desktop's authentication token:
   1. Quit Jump Desktop on your Mac.
   2. Open up the Keychain Access app.
   3. On the left hand corner, in the Keychains section, click Login.
   4. In the top right hand corner, search for Jump Desktop Auth Tokens.
   5. Delete all entries you can find.
   6. Restart your Mac.
   7. After the restart, open up Jump Desktop again and click File -> Sign in.