I got an invitation to join an ArcGIS Online Organization which I was expecting as part of my job. I followed the link to establish my password. I entered in the password and it seemed like it worked and then it took me to the log on page and I entered my user name and password and it said in valid username or password. So I thought maybe it didn't take my new password so I tried setting the password again and got an invalid security response for resetting password. I have tried signing in on chrome, firefox, and edge and clearing the cache none of that worked. I have set up accounts with other ArcGIS Online Organizations before with no issues. Does it take time for the account to become active? Should I try hitting the forgot password button?