Outlook won't set-up

I had a hard drive crash and of course I had not made an image so I have to start from scratch. I purchased a new hard drive installed it. i was able to reinstall windows 10 and was able to re download  my office. I started out look and tried the auto set-up. it did not work so I logged on to Cox.net got the server settings and attempted to set-up manually. I cannot get past a pop-up which asks for server user name and password. I enter everything even though it is already populated and when I click on OK it just pops-up again.I have verified the password by logging on to the web client. SO what's wrong I'm sure it's simple and that I am just missing it.