SQL Things

The information below is an extremely brief summary of the information collected to solve the elusive problem.  There are points I left out because I could not find supporting documentation and I did not want to release suppositions into the universe (why does an NTLM only issue impact a system using kerberos?).  I also want to thank my friend Josh Corrick for staying the course and seeing this through to the end.  See Josh's blog here:  https://corrick.io/blog/ Without warning, our Power BI Report Server began having issues presenting Power BI reports.   The reports would appear to render but would eventually return a blank report canvas.   There was not an error presented and this was impacting all Power BI reports.   An important note is the Power BI reports had worked as expected previously and no changes had been made to the report server such as upgrades or configuration changes. Subsequently, and seemingly unrelated, an error notification was presented when clicking