I get a number of browser error messages using ADFS, all of the form.
There was a problem accessing the site. Try to browse to the site again. If the problem persists, contact the administrator of this site and provide the reference number to identify the problem. Reference number: c14bcf7c-268d-46be-82c3-7c1d873c3df2
I have tried to find these in the event log to no avail.
How do you use the reference number to track down the errors?
Open the Event Viewer. Navigate to 'Applications and Services Logs' -> 'AD FS 2.0' -> Admin. In the 'View' menu, using 'Add/Remove Columns...', add the 'Correlation Id' column. Look up the reference number 'c14bcf7c-268d-46be-82c3-7c1d873c3df2' in the 'Correlation Id' column.
(In some specific cases you get a 'Reference number' but no event in the AD FS 2.0 event log. In my experience that is mostly when customizing the sign-in pages.)