Hi @TodLHM ,
As per your comments,seems this is specific to CRM panel authentication.
Please follow below post in the community which has some discussions on similar issues
Considering your IFS update level, I did some internal search and identified that, there were issues within update 8 and 9 ,which caused authentication problems to CRM panel when you active SSO.
Apart from that,there is a severity 2 bug fix which is released with Update 10 which has bug title
“Unable to connect to CRM Panel and office 365 with customer's ADFS Integration”
This could fix your issue as it also corrected a similar issue.
So depending on your support entitlement you can request this bug from IFS support or try to update into latest UPD level.
If this solves your question, kindly mark it as Best Answer as it will help other members in the community.
Regards
Manoj