I keep having my root account locked out. It is not unlocking after the 900 second time out limit. I thought it was an issue with my backup software. I use Veeam Backup and Replication, but I use that for a lot of different client that I support and I am not having this issue anywhere else. According to the Auth.log the issue seems to be cause by one server, which is an AD, but from random ports. I have attached the Auth.log.
I am able to unlock the root account and everything works for a shot time then the issue is back.