Allowing Authentication Within OWA
If you've added the OWA websites to your local intranet zone and you're still not having any luck gettings things done, there is one more thing that I would recommend trying. Head back into the OWA settings for your personal account and make sure the following two boxes are checked:
- The anonymous authentication is enabled on Default Web Site
- The windows authentication is enabled on OWA virtual directory
If both of those boxes are selected (and they should be by default) already, then you're pretty much out of luck. If, however, they are not selected, this could very well be the one thing that ultimately fixes your issue. Select them, restart OWA, and hopefully things will go completely smoothly.
If, after trying all three of these solutions nothing is working, please leave a comment on this article and we will do our absolute best to research the issue further and find an answer that suits your needs. Thankfully, fixing frequent Outlook Web Access authentication isn't a tough project compared to most computer issues, so until then, I hope everything worked out, and happy OWAing!