very often when I troubleshoot ADFS login page error, I need to match the CorrelationID with error on AD FS Server.
the quick way to find the CorrelationID(ActivityID) in the ADFS Server event log using Event viewer is:
- Event viewer
- Go to Event : Application and Services Logs\AD FS\Admin
- Right Click on Admin, then click on Find
- you can then type the CorrelationID provide by the failing user