This was asked by a university in Southern California.
Here are some new tools to help you troubleshoot your ADFS and your Office 365 setup:
ADFS Connectivity Analyzer tool
You can also use the Remote Connectivity Analyzer to help you troubleshoot your ADFS configuration or other coexistence settings.
I provided my on prem AD creds and the analyzer provided successful results of an Office 365 ADFS test:
Visit the Remote Connectivity Analyzer tool here.
Another Advanced diagnostic ADFS tool: MOSDAL 3.2
This is a Office 365 diagnostics tool used by Microsoft Online support folks but it now has the ability to check your ADFS configuration:
You can select what tests you want it to run if you are having issues with just one area.
It generates many diagnostic files you can send to Microsoft Support or review on your own. This one is the ADFS diagnostic test you can review on your own:
Grab the MOSDAL diagnostic tool here:
· MOSDAL KB Article
· Using MOSDAL 3.2 to Troubleshoot Identity Federation - has nice steps to remediate errors found in the ADFS log above