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:
If Using Incognito/Private Browsing Mode
Incognito or Private browsing modes block cookies by default in most browsers. To resolve this:
- Exit incognito/private mode and use a regular browser window, OR
- Enable cookies in incognito/private mode through your browser settings (this varies by browser)
After Enabling Cookies
- Close all browser windows
- Reopen your browser
- Navigate to OWA and sign in again
- Your login credentials should now save properly