Add Comcast’s.net to iPhone

Please help add email to iPhone. We transferred to AT&T last year but kept our @comcast.net account. Now, two different iPhones later, we can’t add the comcast email to our iPhone account.

It doesn’t appear that we’ve been shifted to the “yahoo” account. On iPhone I’ve tried Microsoft exchange and Mail account. Tried focusing on imap vs POP. I’ve tried help pages. Nothing is working. I *can* log in on line, so I know my login information is correct.

Any suggestions?