Connecting hotmail account to an iphone

I can not get my iphone to verify my email address and or password to my main email account that I use, while I can still set up by secondary email account. They are both outlook/hotmail accounts with identical settings, so I do not understand why one works while the other one does not. the error message I get when I try to set it up as under the "outlook" option is "cannot verify account information". When I try to add it us as "other" the error message I get is "The user name or password for "pop3.live.com" is incorrect"  Can anyone please help me??