We are having an issue with ADFS and Office365 SSO authenticating users. The Microsoft remote connectivity analyzer reports everything is fine. I followed the guides that outlined setting up ADFS and all the pre-reqs. The step that I was unable to complete is the DirSync tool and to enable AD sync in the Office365 portal. This is due to the SSO being implemented and I was unable to log back in to complete this since the federation had been set up and now I can no longer login to the portal with my credentials (due to not being able to authenticate). I have contacted Microsoft and their solution is to break the federation between the two. I feel as if we are close but there is something that is not happening.
From inside the network when logged in as a user, the SSO agent is installed and when it attempts to sign in, it says "Sorry, but we're having trouble signing you in" and then an error code of 8004789A. I installed a hotfix that related to ADFS and this particular error code but that did not help.
Any suggestions would be greatly appreciated.