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Login Loop When Accessing Outlook on the Web (OWA)

Problem

Your credentials aren't saving in the 365 Add-in, and you're repeatedly redirected to the login page without successfully signing in.

Cause

This issue occurs when cookies are disabled or blocked in your browser. OWA requires cookies to maintain your session. Without cookies enabled, the authentication process cannot complete, causing an endless login loop.

Solution

Follow the instructions for your browser:

Note: Some Mac users may encounter an OWA login loop if they haven't enabled third-party cookies in Chrome. This can be easily resolved by simply clicking the eye icon on the right side of the browser's address bar, and retrying the login:

Chrome Mac cookies.jpeg
 

If Using Incognito/Private Browsing Mode

Incognito or Private browsing modes block cookies by default in most browsers. To resolve this:

  1. Exit incognito/private mode and use a regular browser window, OR
  2. Enable cookies in incognito/private mode through your browser settings (this varies by browser)

After Enabling Cookies

  1. Close all browser windows
  2. Reopen your browser
  3. Navigate to OWA and sign in again
  4. Your login credentials should now save properly