When you are in the login screen click on the option "Forgot password?". You just have to fill in your mail adress and hit the "submit" button. You will receive a mail containing a link to reset your password.
- you will only receive a mail, when an admin of your network has already activated your account
- always use the mail address with which you were invited originally
- depending on the server settings of your company it may take a few minutes until the mail arrives