IE11 doesn't accept format of domainname\username when authentication through ADFS RRS feed

  • Question

  • I am using IE11 , when I log on to Office365 through ADFS , the login page only accepts userprincipalname format . It doesn't accept domain\username format , if use domain\username , password will prompt again and again .

    However , the issue is not happening on Firefox or Chrome on same computer , and also , the issue is not happening on a different computer which has same IE version .

    could anyone please help me on this ? Thanks in advance

    Tuesday, August 5, 2014 10:52 AM


  • Hi,

    Since this just happens on a single computer, I suggest to reset the Internet Explorer,by resetting Internet Explorer settings, you return it to the state it was in when it was first installed on your computer. This is useful for troubleshooting problems that might be caused by settings that were changed after installation, reset Internet Explorer in this way:

    a. Close all Internet Explorer and Explorer windows that are currently open.

    b. Start Internet Explorer.

    c. On the Tools menu, tap or click Internet options. If you don't see the Tools menu, press Alt.

    d. In the Internet Options window, tap or click the Advanced tab.

    e. Tap or click Reset

    Details can be found at:


    Wade Liu
    TechNet Community Support

    Wednesday, August 6, 2014 10:10 AM