Hi,
nice to see someone else struggling with the same problems. I'm still having the issue
even with hotfix. You can go around it by creating a new registry entry
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Kdc\PerformTicketSignature and
setting the value to 0
(
https://support.microsoft.com/en-us/help/4598347/managing-deployment-of-k...)
but I wouldn't recommend it as a long-term solution.