I am going to try and explain this the best I can. Every day around 3CST all of the DCs generate a bunch of errors for a minute or two and then they go away. They are all referencing my main polling engine's server name - it is not the service account used but the server name.
First Error is Event ID 4776

Second Error is 4625

I am trying to figure out what is going on here. These errors run for a minute or so then they clear up and do not come back until the next day at the same time. Is there something simple I am missing? All of the different domain service accounts work and the error is SERVERNAME$ tried to login. Thanks - Dave