I'll answer my own question about the logging.  The settings are in lc_turnkey.xml.  I modified the setting for periodic-rotating-file-handler and <logger category="com.adobe">, changing "INFO" to "DEBUG".  I'm not sure if it was necessary to change both or if one would have been sufficient.  I rest...

Thanks Scott.  It's a fresh install, but it was working as of earlier today.  Then I installed Workbench on my workstation and logged into that.  Afterwards I could not log in to Workspace.  I'm guessing that these things are related because of what DarrenBiz said about "You can often see it when yo...

I'm getting this same error, but I suspect it's for different reasons.  I'm pretty sure there's nothing wrong with my browser version or configuration because I was logging into Workspace earlier today.  I then installed AEM Forms Workbench and logged into that.  Ever since, I'm getting the cookies ...