The target principal name is incorrect. Cannot generate SSPI context.
Today's problem occured after I restarted a Hyper-V based SharePoint 2013 farm (Windows Server 2012, one SharePoint 2013 machine, one SQL Server 2012 machine, one DC). I fired up Central Administration and was hit with the following error: Unknown SQL Exception 0 occurred. Additional error information from SQL Server is included below. The target principal name is incorrect. Cannot generate SSPI context. After checking the obvious things - testing connectivity to the DB server, checking the SQL service was running, verifying permissions, etc - I initially figured this was an issue with my Hyper-V snapshots being out of sync, so I ran the SharePoint Products Configuration Wizard. This hit me with the following error: Failed to detect if this server is joined to a server farm. Possible reasons for this failure could be that you no longer have appropriate permissions to the server farm, the database server hosting the server farm is unresponsive, the configuration database is